The item is a lightweight and practical Abacus. Manufactured with reliable material, sturdy and practical for a long-lasting use, which is great for rapid calculation. This abacus is a user-friendly abacus, suitable for home and school use, and a nice tool for early mathematic learning. Features -Color:Multi -Material:Plastic -Size:33.80X6.40X1.40cm/13.28X2.52X0.55in(23 column) -Size:25.60X6.30X1.49cm/10.06X2.48X0.59in(17 column) - This abacus is made of stable material, it is safe material. You can use it with confidence. - workmanship, and this Abacus for Kids is portable and for office, school using. - The Abacus is portable and helps people to improve their hand-eye-brain coordination. - The Abacus is an excellent calculation tool for enlightenment mathematics which can cultivate and improve children's computing power, memory and attention. - This will also be fun for the kid too since they get to practice math in a new and unique way! Package list: 1 x Abacus(23 column)