Black Thunder's Breast Collar is a replacement piece to the Black Thunder Saddle. This breast collar has two 1 inch male buckle that are specific to our saddles. The Llama Saddle Breast Collar has an over-the-neck keeper leash. This aids in keeping the breast collar from falling into the llama feet and legs if it is too loose. The breast collar should be placed where the neck meets the chest. Keep the leash loose!