The abacuses are made of good material, which is and practical for long-lasting use, featuring 15 digits rods design, suitable for students, children, accountants, etc. This abacus aims to train children in abacus mental arithmetic to improve their numeracy ability, brain development, etc. Features - Color: Green, Brown. - Material: Plastic. - Size: About 23.40X6.50X1.50cm/9.20X2.55X0.59inch. - Made of for and use, these products will bring you and your kids much more fun. - Smooth surface, no need to worry about scraping your lovely children's delicate hand. - These entertaining learning tools are easy to teach your kids to gain knowledge. - These counting tools help to train hands and brain coordination, develop intelligence. - They are your little kids or your friends, and they will be happy to receive them. Package list: 2 x Abacuses