Silicone Airtag Holder:Airtag Holder can protects your Airtag from scratches and damage.This airtag protective case come with spring buckle, you can attach it to your car key, your bag, child's schoolbag, dog collar, the valuables and more. Accessories:Quick release premium ABS made buckle with variable trendy color options, fashion look in dog and good taste for the owner.The metal D ring is chrome coated to add durability.Dog Collar is convenient to adjust, put on and take off. Reflective Strap:Dog collar with high-quality reflective threads for extra visibility from distance at night. Neoprene Padded:Soft and breathable padded dog collar,with high density nylon webbing. Comfy for dogs to wear for a long time. Size:X-Small Width 5/8", Neck Size 8"-12"; Small Width 3/5", Neck Size 12"-16"; Medium Width 3/4", Neck Size 16"-20"; Large Width 1", Neck Size 20"-24" Dog Collar