• Learning Resources is a learning toy that is loved by over 80 countries around the world. Learn by actually touching the 3D shapes that are easy to start • The three-dimensional structure is difficult to understand on paper surfaces and it is easy to understand by touching it. It can be used for a variety of purposes, such as imaging outlines and deployment diagrams, and learning concepts of volume • Counting sides and points and grabbing the sense of parallel and vertical In addition, the bottom of the 3D is removable, so you can add water or sand to help learn volume • Package Size (W x H x D): Approx. 10.2 x 7.3 x 2.5 inches (26 x 18.5 x 6.3 cm); Main Unit Size: 1 piece approx. 1.2 - 2.4 inches (3 - 6 cm); Recommended Age: 8 years and up • Set includes: 14 pieces (2 cube), sphere, hemisphere, cylindrical (2 types), cone, triangle (2 types), triangular, square (2 types), square cone, pentagon)