[Large set] A large set of 312 pieces in total: 251 parts (effective parts that can be used for assembly!), 63 balls (3 fluorescent balls are also included), dedicated storage bag (easy storage) x 1 [Infinite ways to play] Just like a Pitagora toy. You can see how children gradually learn how to assemble logically through play. It's interesting to think about various destinations for the balls and put them together. The basic way to play is to connect the grooves by interlocking them to create a three-dimensional structure. The parts are quite voluminous, so you can make many combinations, assemble and disassemble, and repeat the process.You can play with your ideas.The simple shaped building blocks bring out your child's creativity endlessly! [Commitment to safety] Made of high quality plastic (food grade ABS plastic) material and does not use BPA. Please play safely. Children's safety is our top priority! However, the accessories are very small. Suitable for children aged 7 and over. [Educational play] There is an element of building blocks, so you can develop your imagination. The parts are quite voluminous, so you can make many combinations, assemble and disassemble, and repeat the process.You can play with your ideas.The simple shaped building blocks bring out your child's creativity endlessly! I also feel like I can develop a sense of three-dimensionality by following the ball with my eyes, and since I can concentrate on playing, I feel like I can also develop spatial awareness skills. [Quality Assurance] If the product is defective, please contact us immediately and we will provide you with a free replacement or full refund. Bead Coaster Educational Toy Slope Looping Set Children's Assembly DIY Building Blocks Indoor Play Boys Girls Birthday Gift Marble Rolling Toy Block Product specifications: blocks toys Shape: Slope/transparent tubular connection lane/curved crossing/rattling crossing/inlet Material: Made of high quality ABS material. BPA-free. quantity: 1. 251 valid parts available for assembly 2. 63 balls (also includes 3 fluorescent balls, diameter: about 1cm) Toy type: Just a Pithagora toy. Depending on how you assemble it, the ways you can play with it are endless. I'm enjoying it because it's like a Pythagora switch because you can make it in any combination you like. You can see how they gradually learn how to assemble logically through play: The basic way to play is to connect the grooves by interlocking them to create a three-dimensional structure. By combining slopes of various shapes, the way the pea ball rolls and the course will change, so you have to be careful with the combinations to make sure the pea ball rolls all the way to the bottom as you want. . Simple shaped building blocks bring out unlimited creativity in your child! There are 4 features! 1. It's a game that uses your hands, so it's likely to improve your dexterity, and it's also a great way to train your brain! Through play, assembling and disassembling inset...