Cycle Dog Bottle Opener Dog Collars are crafted in the USA. They feature a waterproof, odorless upcycled backing that is sustainable and eco-friendly. The latch-lock metal buckle is four times stronger than plastic buckles. With a separate tab loop for ID tags, these collars boast 1000 times less bacterial growth than standard nylon collars, ensuring no odor even after extensive wet play. They are guaranteed to be fun, safe, and tough. The MAX Reflective collars provide full-width reflectivity, while the designer series showcases unique artwork. Customizable dog collars are also available. The medium size fits necks 12-21 inches (30cm-53cm) and is typically suitable for dogs weighing 30-75 pounds (13.5kg-34kg).