CHOSE THE RIGHT SIZE FOR YOUR DOG The size does not match your pet's breed size or weight. Measure your pet's actual size, please refer to our size chart to find the best size for your dog before purchasing. Our Product Size, Size M: (5560cm) Easy to Use Quick release on both sides, not easy to wear and tear. The ABS thickened buckle on the back of our new product cat/dog is easy to put on and take off, the adjustable buckle on the side of the buckle can be adjusted to the pet's comfortable length at any time, fasten it and take it off to adjust, then fasten the safety belt on Fasten the seat belt on the 2 stainless steel D-rings. Safe travel starts here! HIGH QUALITY, LIGHTWEIGHT AND COMFORTABLE High quality breathable sponge pad breastplate. Industry standard high quality stainless steel 2 D rings are plated for durability and abrasion resistance. The dog harness is lightweight and well-crafted without any burden on pets. Safety Features Nylon ribbon, using 3M reflective material, high visibility at night, connected with 3M reflective Oxford material ribbon is soft high-quality PU leather, double quality protection, let your dog wear this chest strap noble and comfortable, whether it is walking Or it's easy to wear a seat belt while riding in a car. No Pull & No Choking The dog harness is equipped with 2 stainless steel strong metal D-rings in the front/rear range for attaching the leash, the front clip prevents pulling, and the rear clip allows for easy walking. The 2 D-rings are reinforced on the extension, so they won't come off easily even if pulled hard. Pull force is distributed evenly over the body to prevent choking.