Preowned please see photos Please be sure to measure the width of your dog's paws carefully, it is key to choosing the correct size for your dog, weight can only be used as an additional reference; Size 1: 1.7''x2.2''(W*L) for 12-23 lbs; size 2: 1.8''x2.4''(W*L) for 18-27 lbs; size 3: 2.0''x2.5''(W*L) for 23-33 lb; size 4: 2.2''x2.6''(W*L) for 31-40 lbs; size 5: 2.4''x2.8''(W*L) for 40-55 lbs; size 6: 2.6''x3.0''(W*L) for 52-65 lbs; size 7: 2.8''x3.2"(W*L) for 63-75 lbs; size 8: 3.0''x3.3"(W*L) for 74-88 lbs SECURE and ADJUSTABLE: Easy to put on / off. These dog shoes expands with a wide split seam opening and two adjustable and reflective straps to ensure a tight fit, also make your dog safe at night RUGGED: Tough anti-slip sole of dog boots provides stability and traction, protection from sharp thorns and hot pavement