Rainbow Lead and Step-In Harness Goes On in Two Simple Steps! Small Lead 4' x 3/8" ; Harness 3/8", Fits 8"-12" chest The two-step harness goes on quickly and easily Simply have dog step in, adjust the quick-adjustable buckle to fit your pet's size. Both lead and harness made by nylon and with extra security buckles for prevent accidentally releasing. Suitable for the small size of dog and cat!