Natural Herbal Scent- Our pain relief patches are made of traditional natural herbal extracts, when you use the pain patch, you will smell a natural herbal scent. The herbal ingredients are deep penetrating temporary relief for knee, back, shoulder, neck, etc joint pain and muscle aches. Safe and Effective - The natural herbal essences can temporarily relieve muscle and joint pain without any side effects. Our knee patches are a self-heating patch design, you may feel warmth for up to 8 hours and even a burning sensation. Don't worry, it's normal! Applicable - This knee pain relief patch has a unique knee shape design, it fits perfectly on the knee and won't come off by walking. This unique design also allows for a perfect fit on any part of the body! Knee patches are suitable for everyone, but are more effective in providing relief for middle-aged and elderly people. Easy to Use Patch - Simply clean the affected skin with a wet towel, remove the protective film, and stick the pain relief patch on the affected area. Apply a wet towel to the patch or wet the patch with water before you will tear it off. 24 Patches Value Pack - The individual vacuum packaged each patch, professional and hygienic. 24 patches in a gift box, that's a great choice no matter as a gift to your husband/wife and mother/father, or use for yourself