Size and Fit: S for 1-2.5kg/m, 2.5-4.5kg/L, 4.5-7kg/XL for 7-10 kg / 2XL for 10-14 kg / 3XL for 14-22.5 kg Advantages: Prevent pets from slipping on hard wooden floors, protect floors and furniture from scratching pet nails. At the same time, help your pet control muscle contractions on difficult surfaces. Features: Anti-slip silicone on the sole can increase grip, and the inside of the sock is reinforced with rubber to make it easier to stand . Package Contents and Size: Set of 4 socks. Choose the appropriate size based on the width of the dog’s paws measured before purchase as shown in Figure 2.