Description from the vendor website:

Buddy Belts ID Collars are the perfect match for your Buddy Belt harness or leash! Crafted from high-quality leather with five eyelet adjustments and a secure metal frame buckle fastener. Each ID Collar comes with a metal BB logo charm affixed to the D-ring. Our ID Collars are intended for attaching your pet’s ID tags. We recommend always using our Buddy Belt Harnesses for walks and other activities.