Learn to stack - For the tumbler, the 3 rings are stacked in size order on the central cone-shaped rod. This feature guides children to classify the rings from largest to smallest in order to be able to stack everything. Logic is called upon - By manipulating the sound rings, children will discover patterns engraved all around - This requires concentration and precision! The pyramid gradually awakens children's fine motor skills and visual acuity.

•  Age requirement: from 10 months