Tobar Wooden Abacus

Material : Wood
Dimensions : 27.5x23.5x5.5

Classic bead sliding counting frame with ten rows of colourful beads. Designed to stand vertically, the wooden frame contains 100 beads, divided into ten sets per row and painted one of five different colours. It's a classic arithmetic device that has proved popular with mathematicians and children for centuries.* Traditional counting instrument