The SunGrow Teeth Coconut Fiber Ball is a fun toy made from chewable coconut fibers. Not only does chewing help promote dental health, but it also helps provide mental and physical stimulation. The fibers and twine on this ball are 100% natural and are completely free from additives, dyes and chemicals. And while the fibers are both tough and thick, the toy itself is lightweight, so your buddy can nudge it around her hutch. This ball is also perfect for guinea pigs, hamsters, gerbils, chinchillas, rats and mice.