Although this item is new and unused, it has a stain found during inspection, so it is being sold as a "defective" item. It is fully functional. [Moisturizing] Set of 2: The silicone material adheres closely to the skin, trapping the ingredients of moisturizing creams and lotions. This helps to moisturize dry heels for a long time, and is expected to improve cracks and roughness. Wear on clean feet, such as after a bath: It is more effective when worn after applying moisturizing cream or lotion. Wear for long periods, such as when sleeping: It will slowly exert its moisturizing effect while you sleep. [Comfortable and Perfect Fit] The silicone material is highly flexible, so it fits perfectly to the shape of your feet. Therefore, the socks are less likely to slip or come off, providing a comfortable fit. [Durability] The silicone material is highly durable and can be used repeatedly. [Reusable and Durable] Hand wash with a mild detergent for repeated clean use. The set includes two foot care socks, white and pink, making it easy to change and carry, so you can always wear fresh socks. Highly recommended for people with calluses, corns, and other skin problems. Silicone socks are recommended for those who are suffering from dryness and cracked heels. Maintain beautiful heels with high moisturizing effect and comfortable wear.