Features: 1.Our heat pads are formulated with a special blend of natural ingredients such as wormwood, ginger, and mint, which are natural, safe, and can help provide the needed pain relief. 2.It with self-heating patch design, you just need to stick it on the painful knee area, joint pain relief patch will help your pain relieve with long lasting patches. 3.Activating cells, improving functions of vital organs. Relieving body fatigue, promoting blood circulation and metabolism. 4.Self-heating patch can be applied on your knees, back, elbow, neck, hip, leg, arm, joint as they can help relieve muscle fatigue, support circulation, and relieve stiffness and aches. 5.Dispelling toxins accumulated in absorbent system, promoting functions of absorbent system and strengthening the immunity. Specifications: Product Size:about 10*7cm Package Size:about 16*20.5cm Quantity:20/50/100pcs Shelf Life:3 Years Scope of Application:Relieve joint pain Notes: 1.Due to the effects of light and shooting angle, the actual color of the item may differ slightly from the color shown on the picture. 2.Due to manual measurement,please allow 1-3cm measuring deviation.Thank you for understanding includes: choice 1: 20pcs *Ginger Warm Patches choice 2: 50pcs *Ginger Warm Patches choice 3: 100pcs *Ginger Warm Patches