Cycle Dog Bottle Opener Dog Collars are made in the USA. Fi device compatible. Waterproof, no-stink upcycled backing is sustainable & eco-friendly. Latch-Lock metal buckle is 4 times stronger than plastic buckles. ID Spot separate tab loop. 1000 times less bacterial growth than standard nylon collars means no odor, even after hours of wet play. Guaranteed Fun, Safe, Tough.