Plastic Abacus Arithmetic Abacus Kids Calculation Tool 17 Digits

Abacus style abacus, plastic frame, 17 digits A bead above and four beads below Give concrete visual representation of numbers by beads A very useful tool in general mathematics education The abacus, also called a counting frame, is a calculating tool where beads are moved down and be carried out by the feel and look at the beads, complex calculations. Material: Plastic Package Contents: 1 x Abacus Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.