All-Day Pain Relief: Provides soothing warmth to help alleviate discomfort from muscle aches, cramps, and other sources of pain, making it perfect for everyday use. Air-Activated: Simply expose the heat pack to air to activate the heat, allowing for easy and quick usage without the need for electricity or microwaves. Odourless: The heat packs are designed to be odor-free, ensuring a comfortable experience without any unpleasant smells. One-Time Use: Each heat pad is intended for single use, providing a hygienic option that can be easily disposed of after use. Convenient Size: At 130 x 100mm, the heat pads are compact and portable, making them easy to carry in a bag or pocket for use whenever needed.