Features: Innovative Microneedles Technology: These advanced patch use tiny micro-needles to specifically release hyaluronic acid into the skin and thus support joint regeneration - pain-free and effective! Long-lasting relief: Micro-needle plaster. The active ingredients are released over several hours to continuously relieve discomfort such as stiffness or discomfort in knees, shoulders and other joints. All-day comfort: lightweight and flexible for extended wear. Support for all ages: Ideal for the elderly, workers, and those with active life-styles. Easy application: Designed for on-the-go relief. Notice: 1.Actual color may be slightly different from the image due to different light effect. 2.Please allow 1-3cm deviation due to manual measurement. Specification: Quantity: 4pcs or Box Package List:4pcs Hyaluron Joint Relief Microneedles Patch