As these toys are chewed and played with, the shapes make for some hilarious moments. Made of durable TPR rubber and a built in squeaker, it keeps them entertained for hours. The bumpy ridged texture helps massage gums and clean teeth as they chew and play with this toy. TPR (thermoplastic rubber) is a safe and durable material that is BPA-free and latex-free. This material is wear-resistant while being flexible and soft. Dimensions: 3.2" x 2.2"