yueton Dog Pet Puppy Cat Kitty Adjustable Nylon Leash Rainbow Dog Chest Straps Chain Seven Color Traction Thoracic Dorsal Suits Dog Rope Dog's Leash Chain Material:High Quality Nylon.Super soft and smooth edge will not hurt your pet. 360Rotating Swivel Lobster Clasp will not tangle the strap. Rop length:47"/120cm Width:0.39"/1cm Adjustable chest size:9.8-15.7"/ 25-40CM,fit for 4kg's pets It looks nice with bright rainbow colors,and is also pretty durable.