Features: Enjoy long lasting warmth with our efficient catalytic heater cotton pad replacement for hand warmers. Efficient catalysts furnacehead cotton pad replaces coal core, ensuring long-lasting heating and warm experience. Suitable for hand warmers, providing long-lasting heat release, easy to replace and install. Suitable for people who enjoy outdoor activities, residents in cold winter areas, and those who need to keep their hands warm for a long time. Provide comfortable warmth for hands in various occasion such as outdoor sports, camping, office, and home. Specifications: Material:Cotton Color:Brown/Black Size:approx 1.1x3.2cm/0.43x1.26in Quantity:1/2/5pcs Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment Package includes: 1/2/5pcs Cotton Pads