Ever Earth Rainbow Balancing GameLearning to count is so much fun with the colourful Rainbow abacus and balancing game from EverEarth. The colourful beads in all their varied shapes and colours teach children to add, subtract, multiply and divide in a playful way, with each wire holding 10 coloured beads. This wooden abacus has so much more to offer as well. The weight of the beads makes the toy tilt, turning it into a balancing game. The children work out how many beads are needed