Blue nylon X-shaped harness, adjustable size with a red button-style lock. - Color: Blue - Material: Nylon - Design: X-shaped - Lock: Red button-style lock - Adjustable: Size adjustable I bought this for leash training, but I only used it a few times as my dog got used to a collar instead, so I'm selling it. My dog is a 10kg Corgi, and it fit perfectly. It's a medium-sized dog harness. Thank you for looking.