This gold, clip-on ring is used to connect your waste pouch to your leash. Many leashes come with this hardware attached to the leash, but some do not. If yours does not, this is a great option. The ringlet is removable, so you can move it from one leash to another. Or you can buy multiple, so every leash has one!
Please note: this gold is not an exact match to the hardware on the waste-pouches.