- [Spiked dog collar] The mushroom spiked rivet is not sharp, so it will not hurt your pet’s skin, and the rivet will not pull the dog’s hair. By wearing a studded collar, your pet won’t break the collar and get bitten by the spikes. Help protect your dog from other dogs. 2. [Durable PU Leather] Solid dog collar made of soft and high quality PU leather and alloy punk spikes; Good size metal D-rings, matched with almost all dog leashes, brands and rings, are strong and durable. Strong enough to hold small/medium/large dogs. 3. Tips: Leave a two-finger space when measuring your pet’s neck for comfort 4. It can be used for many occasions, such as wedding, taking photos, birthday parties, traveling, celebrate and so on