The Silicone Rainbow Teething Stacker is the ultimate multi-purpose toy. Teething + Play! Your baby will quickly discover how the stacking arches make the best soothing teethers! Babies will love chewing on the silicone arches and grow into using their hand-eye coordination by stacking the arches. Don’t forget to try different stacking designs! 7 in wide by 4 in height Materials: – 100% Food grade silicone – Food Grade Silicone