shelfLife: 3 years Manufacture country: China instruction included: yes Ingredients: agaric acid acetate, methyl salicylate, citral, methyl ether eugenol, etc. Indisputable that it is easy to use because the product is with the adoption of minimalistic feature. It can be reused and washed multiple times. It can be cleaned before the first use of oil pack. By the advantages of super soft, lightweight, breathable and friendly to skin, the chest pack is comfortable to wear, and no need to worry about causing any skin stimulation. When using it, apply the beater oil evenly in the middle of the beater pad. Do not fall on the seam to improve the utilization rate of oil. Made of flannel fabric, it is comfortable to wear. The diameter of each sticker is 23cm. It is suitable for yoga and nursing care. Item Name: Oil Chest Bag Material: Flannel Features: Reusable, Comfortable, Non-irritating, Healthy Size Details: Diameter: 23cm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Oil Chest Bag or 2 x Oil Chest Bags