Please Note: Only suitable for small and ultra-small pets such as teddy, corgi, etc. Size 2: 0.9''x1.27''(W*L) for 4-10 lbs; size 4: 1.37''x1.76''(W*L) for 10-17 lb; size 6: 1.76''x2.16''(W*L) for 14-23 lbs.If dog's paws are in between 2 sizes and if you've chosen the larger one, you could try to use socks for dog inside the boots.（2 is suitable for puppies and dwarf rabbits, No. 4 is for cats, and No. 6 is for small dogs such as small schnauzer and butterfly dogs） Soft Lined Dog Boots : The dog boots filled in super soft fleece inside and suitable for claws. Keep dry and more comfortable, protect dog paws when running outside or playing the ground inside in cold weather or hot summer. Non-Slip Rubber Particle Sole : The flexible sole is made of the hard non-slip sole. It has a good anti-slip effect and can provide traction to protect the dog's claws from the road, grass and tiles. deck, boat, winter salt, snow, ice, indoor hardwood floors and other surface injuries,and keep the cute dog clean.