Same-day shipping Anonymous delivery Brand new, unused Thank you for viewing. Please read this product page to the end before purchasing. Self-heating function: Hot spots (such as tourmaline) on the soles of the socks generate heat, keeping your feet warm even in cold seasons. Self-heating socks Magnetic socks Color: Black, Pink Size: 23-26cm Material: Tourmaline, Polyester These are healthcare socks with a heating effect using tourmaline. They warm your feet with the self-heating effect of tourmaline. They massage the acupressure points on the soles of your feet, alleviate coldness, and reduce foot fatigue. They are breathable and made of soft polyester cotton material. Aimed at supporting health, such as measures against swelling For those concerned about varicose veins, etc., by stimulating acupressure points Wear with the protruding side facing inward. The packaging is designed so you can see the acupressure points inside. Please turn them inside out to use. 2-pair set: 570 yen 4-pair set: 950 yen [This is a 2-pair set] Although they are brand new and unused, they have been taken out of the outer bag once for inspection to check their condition. We do not accept returns for size differences, so please check the size listed above. If there is a defective product, please contact us 'before the receipt evaluation after the product arrives', and we will respond sincerely.