Specification Size Length 24 5cmwidth 7 8cmheight 2cmMaterial wooden frame synthetic beadsColor As the picture shows Feature Made of aluminum alloy bars strong and durable Aluminum bar border A key reset Liquidator Using artificial stone synthetic beads Bottom design withnon slip shock pads the use of more stable and more convenient Applies to students accounting accounting banking competition exercises learning mental arithmetic special abacus etc Package included 1 x Abacus Wooden Frame Beads Calculator