Features: 1. Prevent the joint from catching cold: keep the legs warm in the supermarkets, department stores, restaurants, air-conditioned buses, subway, aircraft and other air-conditioned places; 2. Protect your knees while crawling; protect your legs from abrasions at home or in the park; 3. Can also be used in arms; easy to wear in any season; Specifications: Material: 85% cotton + 15% elastic fiber Product size: 12x8cm / 4.7x3.1in Color: black, dark grey, pink, blue Fit for the scene: crawl, during toddlers Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2. Please allow 1-3cm measuring deviation due to manual measurement.