Sloth Silicone Teether. Do you know that Sloth is named so because they are slow? They have very low metabolism rate, and can usually be found hanging upside down in the trees of tropical rainforests. We can't help but fall in love with this special animal. This sleepy mammal friend offers nubby textures on both sides to soothe and engage your little drooler. There’s even a belly opening for easy grabbing! 100% food grade silicone.