The Discovery Stacking Tower from Hope Education is a set of 8 sensory rings for children to stack on a central wooden pole. Includes 3 silver 3 rose gold and 2 wooden rings which can be used for rolling as well as stacking.Develops fine motor skillsSmooth mirrored texture allows tactile and sensory explorationEach ring is 120mm diameter x 40mm deep. Wooden pole is approx. 360mm in height. Age Suitability: 10 months +