Canadian Brand. This & That Stuffed Antler Chew is an extra-enticing antler chew has a beef pizzle in the middle. Naturally shed on Canadian venison farms, these antlers are the highest quality available on the market ("A Grade"). Great for dogs with sensitive stomachs, intolerances or allergies, they will not splinter or chip. They're a high source of protein, calcium, glucosamine, and chondroitin.