Features: Make from natural ingredients, our patches are derived from a variety of natural plant and are relatively safe, without any addictives or side effects. when you open the package, you will smell a natural herbal scent, which is extracted from various preciouses herb. Pain patches ,fast,continuous and deep penetration. self-heating patches design, natural ingredients, more assured to use. Comfortable wearing experience,the knee patches does not cause skin irritation or allergy, and is also breathable and durable. users can move freely without discomfort and thus better perform their daily activities. Wonderful gift,suitable for middle-aged and elderly people, manual laborers, fitness enthusiasts, and other people. Package include,4boxes Specifications: Material:Ginger,Monkshood Package Includes: 4 Boxes Natural Herbal Pains Relief Patches note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.