Small Foot calculation rods Learning can be fun! These 19 calculation rods and the handy frame are made of wood from fully responsibly managed forests. They are ideal math buddies for children. They provide quick and clear insight into figures. The length of the sticks are there to help with the insight. When placed in the right order, all the calculator bars fit neatly into the frame. Specifications: Color: multicolor Gender: junior Material: wood Dimensions: 17 x 17 x 2 cm (LxWxH) Age: from 4 years old Content: 1 Frame 19 Calculation rods