Notice: This toy is suitable for over 166 years old. Description: 100% Brand new and high quality The abacus compact and lightweight for children beginners use Children can by learning abacus First, to foster interest in learning. Second, to promote the development of attention. The development of intelligence, computing capability significantly enhanced. Enhanced spatial memory. Specifications: Abacus Name: 17-speed plastic abacus new material Material: ABS non-toxic materials Abacus Specifications: Length 26.8cm * Width 6.5cm * Height 1.5cm Length specially designed according to the needs of students, can directly into the bag, easy to carry Package contains 1 x abacus