【Heat Source】: Uses self-heating technology to provide warmth, ensuring hands and feet stay comfortable in cold conditions. 【Elastic Wear】: Designed with elasticity for a snug fit, ensuring that the warmer stays in place during activities. 【Portable Packaging】: Individually packaged for easy transport, allowing users to carry warmth wherever they go. 【Non-Slip Features】: Equipped with a non-slip surface to prevent slipping, adding confidence during movement. 【Winter Usage】: Optimized for winter outdoor activities, whether at work or during study, enhancing warmth for hands and feet.