★ Brand new, unused ★ Free shipping ★ Immediate purchase welcome! Self-heating health socks with tourmaline that gently warm your feet! A great value set of 4 pairs, convenient for washing and changing. ✨ ◆ Product Features ◆ Self-heating tourmaline is embedded in the protruding parts to promote blood circulation and prevent cold feet. Improves blood flow, relieving foot fatigue, pain, and swelling. The protrusions are arranged to gently stimulate the foot reflexology points, providing a relaxing effect (*˘ ˘*) Made of high-quality polyester cotton, soft and comfortable to wear♪ Breathable and also offers odor-resistant effects ◎ Great for winter leisure activities like skiing and snowboarding, as well as outdoor activities like camping♪ Makes winter outings comfortable, and can be used at home for energy-saving measures! Recommended for those who suffer from chronic cold feet, and also makes a great gift ♡ ⚠️ When using, make sure the side with the protrusions is on the inside, touching your skin ⚠️ (The photo shows the protrusions on the outside) 【Size】 Unisex Free Size 【Color】 Black ※ Please note ※ ✅ These are overseas products. We inspect them, but if there are any major defects or deficiencies, please contact us before giving a rating or completing the transaction. ✅ Returns and cancellations due to customer reasons such as size or image differences are not accepted. ✅ Returns due to customer reasons are not accepted. ✅ We will use simple packaging to provide them at a low price. Thank you for viewing. - Color: Black - Size: 4 pairs - Features: Self-heating socks - Uses: Promotes blood circulation, cold protection