Features: Instants Heat: Activates quickly to provide immediate warmth, ideal for cold weather, outdoor activities, or relieving muscle tension. Portable and Convenient: Compact and easy to carry, making it perfect for travel, sports, or on-the-go use without the need for batteries or external power sources. Long-Lasting Warmth: Offers hours of consistent, soothing heat, providing comfort and warmth during chillys days or for use in cold environments. Safe: Made with safe materials, the body warmer pad is designed for skin contact and to ensure safe heating without burns or discomfort. Versatile Application: Can be used on various body parts like the back, shoulders, or hands to help with warmth, pain relief, or simply to stay cozy in cold conditions. Notice: Actual color may be slightly different from the image due to different light effect Please allow 1-3cm deviation due to manual measurement Description: Quantity: 20 or 30 or 40pcs Each Box Package List: 1 Set Self-Heating Body Warmer Pads Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.