Cycle Dog Mint Retro Flowers collar is made from recycled bike inner tubes, this makes the collar incredibly strong. These dog collars have a 1000 times less bacteria than standard nylon collars and is completely waterproof. Cycle Dog Mint flowers collars have a bottle opener for the lead clip with a separate ID clip. The latch lock metal buckle is four times stronger than plastic. Cycle Dog collars are made in the USA and are a unique design.