{"product_id":"magnetic-blocks-100-pcs-dark-castle-set-stem-montessori-toy","title":"Magnetic Blocks 100 PCS Dark Castle Set STEM Toy","description":"\u003ch3 style=\"text-align: center;\"\u003eMaster Builder Series: 100-Piece Dark Castle Magnetic Pixel Blocks \u0026amp; Montessori STEM Sensory Construction Set\u003c\/h3\u003e\n\u003cp\u003eThe Magnetic Blocks 100 PCS Dark Castle Set is a multi-dimensional architectural construction playset engineered for imaginative builders, curious minds, and young fortress designers ages 3 and up. Inspired by pixelated fantasy realms, fortress dungeons, and mythical architecture, this 100-cube set lets children bring legendary dark keeps, molten lava streams, stone bastions, and enchanted portals to life on tabletops and play mats.\u003c\/p\u003e\n\u003cp\u003eEach modular block is engineered with powerful internal neodymium magnets that rotate to auto-align, snapping firmly together on every facet without polarity repulsion. Ultrasonic welding seals each cube into a solid, hermetic shell, keeping the magnets securely locked inside during active, multi-tiered building sessions. The cubes feature vibrant dual-sided thematic graphics—including cobblestone masonry, volcanic lava flows, glowing magical crystals, timber supports, and mythical character faces—applied using fade-resistant UV printing technology that eliminates chemical glues and peeling stickers. Young architects can transition effortlessly from simple 2D mosaic layouts to towering 3D architectural fortresses, expanding spatial geometry, fine motor dexterity, and tactile sensory exploration through hands-on Montessori play. Fully compatible with other standard magnetic cube sets, this durable set comes with smooth rounded edges and non-toxic reinforced composite polymer construction, inspiring hours of creative storytelling aligned with the ToyIvia Play • Learn • Grow creative lifestyle collection.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eArchitectural \u0026amp; STEM Highlights:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100-Piece Fantasy World Building:\u003c\/strong\u003e Comprehensive set of magnetic cubes allows children to construct grand fortresses, underground caves, watchtowers, and multi-tier keeps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong Neodymium Core Magnets:\u003c\/strong\u003e High-grade internal magnets provide reliable structural cling, allowing multi-layered cantilevered builds that stay intact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltrasonically Welded Shell:\u003c\/strong\u003e Hermetically sealed outer seams encapsulate the magnetic cores to prevent breakage, separation, or magnet loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Sided UV Printed Textures:\u003c\/strong\u003e Richly detailed pixel art textures depicting stone, molten lava, wood, and fantasy icons printed directly onto surfaces without toxic adhesives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMontessori Sensory \u0026amp; STEM Growth:\u003c\/strong\u003e Enhances 3D spatial reasoning, fine motor grip, geometric logic, and open-ended tactile problem-solving away from screens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Set Compatibility:\u003c\/strong\u003e Standard cube sizing allows seamless mixing and matching with other magnetic block brands for expanded building worlds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChild-Safe Smooth Contours:\u003c\/strong\u003e Formulated from reinforced, shatter-proof ABS composite plastic with chamfered, splinter-free edges for worry-free play.\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%;\"\u003eMagnetic Building Blocks \/ STEM Montessori Sensory Toy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eSeries Collection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eMaster Builder \u0026amp; Fantasy Worlds Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eTheme \u0026amp; Visual Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eDark Castle \/ Fantasy Dungeon Pixel Art (Dual-Sided Graphics)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eTotal Block Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e100 Precision Magnetic Cubes + Storage Pouch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003ePrimary Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eReinforced Non-Toxic ABS Plastic + Neodymium Rare-Earth Magnets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eSealing \u0026amp; Printing Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eHigh-Strength Ultrasonic Welding + Direct UV Printing (No Glues)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eBuild Formats Supported\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e2D Flat Mosaics, 3D Architectural Fortresses, Freestanding Towers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eUniversally Compatible with Standard 2cm–2.5cm Magnetic Cube Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cstrong\u003eSafety \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003eASTM F963 \/ CPSIA \/ CE Certified \/ Lead-Free, BPA-Free, Enclosed Magnets\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 3+ Years (Toddlers with Supervision, Preschoolers, Elementary \u0026amp; Teens)\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%;\"\u003e100× Themed Magnetic Blocks, 1× Portable Storage Bag, 1× Idea Guide, 1× Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Toylvia","offers":[{"title":"Default Title","offer_id":58960374858059,"sku":"CJYZ25917000001","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/7662\/4203\/files\/hero_05db194a-20af-4cbb-bb40-87b0d4ef3272.png?v=1792869816","url":"https:\/\/toylvia.com\/products\/magnetic-blocks-100-pcs-dark-castle-set-stem-montessori-toy","provider":"Toylvia","version":"1.0","type":"link"}