Each pet rattle toy is wrapped with 100% wool making them eco friendly and safe for your home and furry friends! Our pet toys are designed in colors that are easier for your pets to see and the wool can rolled in cat nip or dropped with cat nip oil for added fun and play! Did you know that pets are naturally drawn to wool? It is said that the pets are attracted to the Lanolin in the wool because it reminds them of their mothers! The rattling noise is very soft and soothing. Size: 6cm Included: 4 rattle balls Rattle pet balls can be sold as a set or individually. Pieces may come packaged with other items in your order to save on packaging. Pet toys are best sold displayed all together in a basket or bowl.