{"product_id":"rokr-real-optical-microscope-stem-3d-wooden-puzzle-kit","title":"ROKR Real Optical Microscope 3D Wooden Puzzle STEM Toy","description":"\u003ch3 style=\"text-align: center;\"\u003eScientific Explorer Series: ROKR Real Working Optical Microscope 3D Wooden Puzzle with 40X–400X Precision Magnification \u0026amp; Dual-Color Optical Filter System (Vintage Laboratory Edition)\u003c\/h3\u003e\n\u003cp\u003eThe ROKR Real Optical Microscope 3D Wooden Puzzle is a functional scientific laboratory instrument, hands-on mechanical woodworking project, and interactive STEM discovery kit engineered for students, homeschoolers, hobbyists, teens, and adult makers aged 14 and up. Recreating the classical brass and timber aesthetic of 19th-century scientific research instruments, this 260-piece DIY model transforms flat basswood sheets into a fully operational optical microscope capable of magnifying real microscopic specimens up to 400 times actual size.\u003c\/p\u003e\n\u003cp\u003eEngineered with genuine optical-grade glass lenses, the instrument pairs a dedicated 10× widefield eyepiece with a rotating nosepiece turret containing three objective lenses: 4×, 10×, and 40×. Together, they provide three selectable magnification stages (40×, 100×, and 400×), allowing users to study biological cell structures such as onion skin epidermises, plant stomata, textile fibers, and insect wings. Fine focal adjustments are achieved through an internal mechanical worm gear drive: turning the knurled side focusing wheels raises and lowers the optical lens barrel with calibrated damping, while a safety ratchet mechanism prevents over-travel and slide damage. To optimize specimen contrast under varying ambient light, the integrated condenser incorporates a dual-color slide filter system with green (to boost cellular contrast) and blue (to enhance photographic clarity) filters. Precision laser-cut from certified sustainable plywood sheets, each piece snaps together firmly using interlocking mortise-and-tenon joints—completely eliminating the need for messy glues, toxic chemical adhesives, or specialized hobby tools. Requiring approximately 6 hours of rewarding assembly, this tabletop instrument strengthens spatial logic, mechanical comprehension, and a lifelong passion for biological sciences. Fully compliant with international safety standards, this functional wooden microscope aligns with the ToyIvia Play • Learn • Grow creative lifestyle collection.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eOptical Engineering \u0026amp; Mechanical Highlights:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal 40X to 400X Optical Magnification:\u003c\/strong\u003e Authentic glass optical train combines a 10× eyepiece with revolving 4×, 10×, and 40× objective lenses to observe biological cell structures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Color Contrast Filter System:\u003c\/strong\u003e Built-in slide-in green and blue optical filters optimize specimen contrast and resolution for living cell examination and microphotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorm Gear Damped Mechanical Focus:\u003c\/strong\u003e Precision mechanical rack-and-worm gear drive raises and lowers the optical barrel smoothly with a built-in anti-overtravel ratchet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVintage Ecclesiastical \u0026amp; Laboratory Styling:\u003c\/strong\u003e Laser-etched ornamental scrollwork, vintage filigree patterns, and brass-tone hardware deliver antique scientific elegance to any desk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Glue-Free Laser-Cut Joinery:\u003c\/strong\u003e 260 precision-cut basswood components snap together firmly using friction-fit joints with zero adhesives or chemical glues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-Depth 6-Hour STEM Build:\u003c\/strong\u003e An educational woodworking challenge that teaches optical physics, focal mechanics, and biological microscopy through hands-on construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSturdy Tabletop Laboratory Centerpiece:\u003c\/strong\u003e Measures 11.8 inches tall (30 cm) with a weighted mechanical base, making it a functional conversation piece for studies and home labs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified Eco-Friendly Construction:\u003c\/strong\u003e Formulated from 100% natural, non-toxic wood materials free from high-concern chemicals, meeting ASTM F963 and CPSIA standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eThe Product Blueprint (Specifications):\u003c\/h4\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eProduct Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e3D Wooden Puzzle \/ Real Working Optical Microscope Model Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eBrand \u0026amp; Collection Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eROKR \/ Scientific Explorer \u0026amp; Vintage Laboratory Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eTotal Component Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e260 Precision Laser-Cut Wooden \u0026amp; Optical Glass Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eMagnification Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e40X, 100X, and 400X Continuous Selectable Magnification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eOptical Glass System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e10× Eyepiece + Revolving Triple Nosepiece (4×, 10×, 40× Objectives)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eContrast Enhancers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eDual Slide-In Color Filters (Green for Cells \/ Blue for Imaging)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eFocal Adjustment Mechanism\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eCalibrated Worm Gear System with Built-In Damping Ratchet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eAssembled Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e7.3\" L × 5.7\" W × 11.8\" H (18.5 cm × 14.5 cm × 30.0 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eEstimated Assembly Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eApproximately 6 Hours (Intermediate-to-Advanced Challenge)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003ePower Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e100% Battery-Free Optical \u0026amp; Mechanical Operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eSafety \u0026amp; Compliance Standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eASTM F963 \/ CPSIA Certified \/ Non-Toxic \u0026amp; Chemical-Free Build\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eRecommended Operator Age\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eAges 14+ (Teens, Students, Educators \u0026amp; STEM Collectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003ePackage Inclusions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003ePre-Cut Wood Sheets, Optical Lenses, Color Filters, Wax \u0026amp; Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Toylvia","offers":[{"title":"Default Title","offer_id":59104464994635,"sku":"PIQ-WPST-RROM3D","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/7662\/4203\/files\/hero_0e2a25a5-ca3c-4669-9ba5-8062900e6e78.png?v=1793768988","url":"https:\/\/toylvia.com\/products\/rokr-real-optical-microscope-stem-3d-wooden-puzzle-kit","provider":"Toylvia","version":"1.0","type":"link"}