This toothed hot/cold gel pack is made of high-quality PVC and bead material to ensure a good user experience. Its versatile design makes it ideal for relieving toothaches, headaches, muscle pain, and other ailments. You can heat it in the microwave or cool it in the refrigerator for a soothing hot or cold compress anytime, anywhere. Suitable for various scenarios such as home, travel, outdoor activities, etc. We can customize your logo to suit your needs, making it a unique promotional gift.