At six months, most babies start eating solid foods, so it is a good idea to give your child a hard edible object to chew upon when he starts having teething problems. (newkidscenter.com)
Multiple sheets of rawhide are compressed together and given a particular shape to be chewed upon by dogs. (mypetneedsthat.com)
Also, this necklace should be worn and not chewed upon. (checkpregnancy.com)