"Provide your furry friend with a delicious and nutritious treat with these PetAg 9"" Natural Roll 100 Percent Beef Hides for Dogs. They are made from all-natural, free-range, grass-fed Brazilian beef hide. Designed for aggressive chewers, these rawhide bones feature the patented Safety-Knot bone design to prolong the chewing process. They are antibiotic- and hormone-free. Ideal for larger breeds, these dog chew bones comes as a convenient 4-pack. Reward your canine pal with these 100 percent rawhide bones."