This adorable koala silicone stacking toy from Tiger Tribe is a baby teether, puzzle and sensory toy all in one. A cute koala sits on top of five different sized stackable teething rings, all with varying textures. The soft food-grade silicone stacking rings are easy for little hands to grasp and examine. They are specially designed to soothe and comfort sore gums. Tots can develop hand-eye coordination and fine motor skills by stacking the koala tower in different combinations.