PAWZ Dog Boots (set of 12) s are the world's only disposable and reusable, waterproof dog Boots (set of 12) . Made of natural rubber, PAWZ are 100% biodegradable and non-toxic. PAWZ are designed to go on easy and fit securely without zippers or straps. Fashionable yet durable, PAWZ offers serious year-round paw protection. PAWZ is the most natural-feeling Boots (set of 12) a dog can wear because without padding your dog can feel the ground, providing a needed sense of security. Like a sock, PAWZ moves with the dog allowing full paw motion and maximum comfort. PAWZ come 12 in a package and each Boots (set of 12) may be worn many times. To determine the correct size, measure from the back of the heel pad to the tip of the longest tow. Sizes are as follow: Tiny - up t 1"; XX-Small to 1.5"; X-Small to 2"; Small- to 2.5"; Medium to 3"; Large to 4"; Extra Large to 5". Colors vary by size: Tiny is Apple Green; XX-Small is yellow; X-Small is Orange; Small is Red; Medium is Blue; Large is Purple; X-Large is Green.