[Quick Pain Relief and Relaxation] After finishing work and fitness exercise, use Sumifun knee pain relief patch to help you quickly relieve and eliminate pain and fatigue in knees, back, elbows, neck, legs, arms, wrists, joints, etc. The heated and cool patch makes you feel comfortable and relaxed. [Pure Natural Plant Extracts] Sumifun pain relief patches, manufactured by traditional natural plant extracts, the ingredients include mugwort, peppermint, cinnamon, etc.. Very safe, no irritating ingredients, can be used without worry. [Long Lasting Effect] With Sumifun knee patch, your muscles and joints can enjoy quick pain relief and relaxation to eliminate fatigue. It is recommended that the maximum use time should not exceed 8 hours. Since everyone's body and skin are different, some people may feel sizzling and skin redness after use, which is not recommended for long time use for such people, but it is normal. [Wide Applicability] Sumifun pain patches is suitable for athletes, yoga, IT computer workers, manual laborers, gym enthusiasts, truck drivers and many other people. For spine pain, shoulder freezing, knee pain, back pain, etc. [Easy to Use] Wash the affected area with warm water and dry it before use, tear off the protective film to put on. In order to avoid pulling the skin and hair when taking off the patch, we recommend that you use a hot towel on 1-3 minutes before taking off the pain patch.