Type... 3D puzzle Specifications... Plastic assembly kit Scale... Non-scale This is a block that assembles to create a tensegrity structure. It's a mysterious structure where things float in the air using only chains. You can enjoy the structure by looking at it or shaking it. Assembly instructions are included. Some blocks may come loose, so using instant glue to fix them makes assembly easier. It has the same standard as LEGO blocks, so you can play with them by combining them. The size after assembly is approximately 13 cm in height. Because of its mysterious structure, it's also recommended as interior decor. Also, to foster children's curiosity, assembling it together with parents can be surprisingly fun♪ Recommended for summer vacation research projects! (56 pieces, estimated target age: 8 years and older) [Free Shipping] Shipped via Yu-Packet Post Mini. Anonymous delivery, with tracking, and delivery guarantee, so you can use it with peace of mind. Since it's delivered to your mailbox, it's convenient for receiving. Type... 3D puzzle Number of pieces... 50 pieces - 99 pieces