Features:1. It adopts high-quality buckle design and is easy to wear.2. It can be connected to a leash and used as a pet chest strap. The overall strength of the product makes your dog's breathing smoother.3. Combine with a seat belt in your car to increase the safety of dogs and owners on the road.4. One end is tied to the dog's collar, and the other end is on the seat belt socket in the car. You don't have to worry about the difference between a large dog and a puppy. All dogs can use it.5. new material. Description:1. Material: Mesh2. Seat belt: PP plastic, no stretch is about 50cm/19.69in, fully extended to about 70cm/27.56in, weight about 45g3. Seat Belt Product Specification (Approx.): 2.5CM/0.98 inches wide, adjustable length to 70CM/27.56 inches, minimum 50CM/19.69 inches4. Color: Black5. Size: S, M, L6. Net Weight: About 150g7. Packing: OPPLista: 1 * Chest Strap or 1 * Lanyard