MAERIAL & SIZE: Made of durable rubber. L Insole: 5.8cm*4.5cm/2.3*1.8'(length*width). Package included: 1 set (4 pcs) dog roots. WATERPROOF: PVC environmental protection material, non-toxic, flexible. Rainproof, waterproof, and anti-skid dog walking shoes, great for keeping dogs and cats' claws clean and avoid the glass shards. EASY ON AND OFF: Easy and comfortable to wear with the magic tape, and it is very light and convenient for your dog. SOFT AND DURABLE: PVC environmental protection material, non-toxic, flexible and soft which can be arbitrarily curved, not hurt grinding pet foot pain. MEASURING METHOD: 1. Place the paw on a piece of paper and press down on the top, mimicking how the paw spreads when the dog is walking; 2. Mark the left and right sides on the paper and measure the distance between the marks; 3. Measure the paw Maximum length and width; 4. Choose the shoes with size a little larger than paw size (around 1cm larger).