--- product_id: 469954043 title: "Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers" brand: "blockaroo" price: "¥28143" currency: JPY in_stock: true reviews_count: 13 category: "Blockaroo" url: https://www.desertcart.jp/products/469954043-blockaroo-magnetic-foam-building-blocks-35-piece-castle-set-toddlers store_origin: JP region: Japan --- # 35-piece STEM castle set 360° magnetic rotation non-toxic & dishwasher safe Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers **Brand:** blockaroo **Price:** ¥28143 **Availability:** ✅ In Stock ## Summary > 🏰 Build brilliance, spark imagination, and join the STEM play revolution! ## Quick Answers - **What is this?** Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers by blockaroo - **How much does it cost?** ¥28143 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/469954043-blockaroo-magnetic-foam-building-blocks-35-piece-castle-set-toddlers) ## Best For - blockaroo enthusiasts ## Why This Product - Trusted blockaroo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bath Time Just Got Epic:** Floats and doubles as a sensory water toy, turning bath time into an imaginative adventure. - • **STEM Learning Meets Playtime:** Boosts engineering skills and creativity with colorful, shape-exploring fun. - • **Magnetic Magic in Every Click:** Patent-pending foam blocks snap and rotate 360° for endless creative builds. - • **Safe & Durable for Peace of Mind:** Exceeds international safety standards and is 100% dishwasher safe for easy cleaning. - • **Teacher-Approved & Award-Winning:** Developed by educators and recognized with multiple parenting and educational awards. ## Overview Blockaroo’s 35-piece Magnetic Foam Building Blocks Castle Set offers toddlers a safe, award-winning STEM toy that combines soft, non-toxic foam with innovative 360-degree magnetic rotation. Designed by teachers and dishwasher safe, it encourages creative engineering and sensory play—indoors or in the bath—making it a must-have for early learners eager to build, explore, and grow. ## Description desertcart.com: Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers | Soft Magnetic Foam Blocks, 360-Degree Rotation, Floating Bath Toy, Sensory Play, Dishwasher Safe, STEM Building, Ages 3-5 : Toys & Games Review: Whoever came up with the idea for magnetic blocks is a genius - My grandsons love these! Whenever they come over they go right for these blocks. I ordered two more sets for a total of 36 so they can both play with them. Review: Nice gift for toddler - Nice blocks. Got this as a gift for my 3-4 year old nephew & he enjoys them. He’s able to play with them on his own & build random things. ## Features - EASIEST BUILDING SYSTEM FOR YOUNG LEARNERS - Blockaroo blocks are a new way to build. Our patent-pending foam magnetic blocks click together like magic, rotate 360-degrees, and always attract to each other, creating a multi-sensory experience that kids love. - STEM TOYS THAT ENCOURAGE LEARNING – Preschoolers will develop engineering and creative thinking skills, explore shapes, colors, and building with these soft foam blocks! Provides hours of engaging, creative play that helps developing minds grow! - SAFE, NON-TOXIC & DURABLE - Blockaroo builders are tested to the highest levels and exceed all international safety testing standards. 100% dishwasher safe, mold free, and insanely durable, they’re the perfect STEM activity for any classroom. - FUN, EDUCATIONAL & EASY - Blockaroo blocks float and can be used as a creative bath/water toy that encourages children to let their imaginations set sail. Parents love how Blockaroo blocks make bath time an experience kids look forward to! - DEVELOPED BY TEACHERS - Blockaroo building blocks were developed by teachers and have earned the Mom's Choice Award, Tillywig Brain Child Award, and the Parent and Teacher Choice Award. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B098BJLQD1 | | Additional Features | Non Toxic | | Age Range Description | 3 years and up | | Best Sellers Rank | #16,238 in Toys & Games ( See Top 100 in Toys & Games ) #204 in Toy Magnetic Building Sets | | Brand Name | Blockaroo | | Color | Multicolor | | Customer Package Type | Flat Free Package (FFP) | | Customer Reviews | 4.7 out of 5 stars 1,501 Reviews | | Educational Objective | STEM | | Included Components | Large Soft Foam Blocks | | Indoor Outdoor Usage | Indoor | | Item Dimensions | 15.59 x 3.27 x 11.02 inches | | Item Highlight | Soft Magnetic Foam Blocks, 360-Degree Rotation, Floating Bath Toy, Sensory Play, Dishwasher Safe, STEM Building, Ages 3-5 | | Item Type Name | Magnetic Soft Foam Building Blocks | | Item Weight | 633 g | | Manufacturer | JMW Sales, Inc. | | Manufacturer Part Number | MMBLLGCASTLE | | Manufacturer recommended age | 3 years and up | | Material Type | Soft Foam | | Model Name | Magnetic Foam Building Blocks - 35-Piece Castle Set | | Model Number | MMBLLGCASTLE | | Model Year | 2021 | | Number of Pieces | 1 | | Operation Mode | Manual | | Set Name | 35-Piece Castle Set | | Size | One Size | | Target Audience | toddlers, preschoolers, kindergarten students | | Theme | Architecture | | Toy Building Block Type | Magnetic Toy Building Block | | UPC | 816448028519 | | Unit Count | 1 Count | ## Images ![Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers - Image 1](https://m.media-amazon.com/images/I/81ynkOHb2cL.jpg) ![Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers - Image 2](https://m.media-amazon.com/images/I/81ljZLuKPwL.jpg) ![Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers - Image 3](https://m.media-amazon.com/images/I/7146U1Jea4L.jpg) ![Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers - Image 4](https://m.media-amazon.com/images/I/81qGoFwRo4L.jpg) ![Blockaroo Magnetic Foam Building Blocks 35-Piece Castle Set for Toddlers - Image 5](https://m.media-amazon.com/images/I/A12y4-QEc+L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Whoever came up with the idea for magnetic blocks is a genius *by S***S on July 16, 2026* My grandsons love these! Whenever they come over they go right for these blocks. I ordered two more sets for a total of 36 so they can both play with them. ### ⭐⭐⭐⭐⭐ Nice gift for toddler *by N***E on May 6, 2026* Nice blocks. Got this as a gift for my 3-4 year old nephew & he enjoys them. He’s able to play with them on his own & build random things. ### ⭐⭐⭐⭐⭐ Great toy in and out of the bathtub *by A***T on October 3, 2025* My grandchildren love Blockeroos. This is the 3rd or 4th set I have bought. They are expensive but they last and continue to be enjoyed in and out of the bathtub. Perfect for 2 yrs and beyond. If they want to bite them wait until that phase has passed since that can ruin them. ## Frequently Bought Together - Blockaroo Magnetic Foam Blocks – STEM Preschool Toys for Children, Toddlers, Boys and Girls, The Ultimate Bath Toy – Castle Set, Bath Building Blocks, Engineering Toys for Kids 3-7 - Blockaroo Magnetic Foam Blocks – STEM Preschool Toys for Children, Toddlers, Boys and Girls, The Ultimate Bath Toy – Roadster Set, Bath Building Blocks, Engineering Toys for Kids 3-6 - Blockaroo Magnetic Foam Blocks – STEM Preschool Toys for Children, Toddlers, Boys and Girls, The Ultimate Bath Toy – 50 Piece Set, Bath Building Blocks, Engineering Toys for Kids 3-6 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/469954043-blockaroo-magnetic-foam-building-blocks-35-piece-castle-set-toddlers](https://www.desertcart.jp/products/469954043-blockaroo-magnetic-foam-building-blocks-35-piece-castle-set-toddlers) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-07*