RollNut is a wooden abacus for ages 18 months and up. It consists of a cone-shaped metal rod with 4 moving beads. Have fun sliding and turning the different coloured beads up and down along the rod in a circular motion to connect the squirrel to his hazelnuts. Contents: 1 wooden and metal assembled abacus and 4 wooden beads. Move the beads in a circular motion on the rod. FSC® certified wood. Suitable from 18 months.