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. Comes in a 4-pack with exquisite packaging, easy to store. In addition the back of the dog shoe box has a size chart, so it is easy to measure the size of your pet before wearing. Please be sure to measure the width of your dog's paws carefully, weight can only be used as an additional reference; Anti-Slip Boots for Dogs: Tough anti-slip rubber sole of dog booties provide stability and traction for dogs, help dogs to stand up on hardwood floors; protect from sharp thorns and hot pavement; keep the weak paws from snow, ice, rain during winter; and make it easier for dogs to play at home and outdoors. Secure Adjustable Dog Hiking Boots : Wide split seam opening to easy on and off. Dog shoes are fastened firmly by double reflective straps, able to prevent slippage and provide custom tightness for safe closure and also make your dog safe at night. Note: After wearing them, please try to tighten the straps effectively to prevent the dog shoes from falling off the dog's paws. Waterproof and Warm Paw Protector Booties: The dog shoes are made of high quality fabric, which is wear-resistant, stain-resistant, light and breathable. Waterproof four-sided stretch fabric, high-grade space leather, fleece inner lining can keep dry and cozy, which is softer and warmer to wear and better protects the pup's paws, great for wound and injury protection. No more wiping muddy or sandy paws after the rain or snow, used in wet and dry places in spring, summer, snow and ice in winter. Hand washable and air dry them. Classic plaid pattern, fashionable and never out of date; and will not fall off or cause creases. Dress your pet with BEAUTYZOO dog boots, making your pup look more fashionable and eye-catching. Can be used as outdoor photo shoes, dog rain boots, hiking booties, become surprise gifts for your furbaby. Dog Boots can effectively protect enough paws in hot, cold, sharp, wet, muddy ground