Description: Air activated design makes it heat quickly and brings long lasting heating. Compact size design makes it easy to carry with no matter where you're going. Disposable and self adhesive design makes it convenient to use. The warmer pad can provide warmth to your body, hand and foot when the temperature gets cold. It is made of high-quality iron powder, water, and activated carbon material. The length of this warming sticker is 16cm and width is 12cm. This warmer sticker is comfortable to wear so that it is suitable for work, study, and daily life. Item Name: Warm Stickers Material: Iron Powder, Water, Activated Carbon Features: Self-heating, Warm-keeping, Cute Pattern: Random Heating Time: 10 Hours Maximum Temperature: 63 Degrees Centigrade Size Details: Size: 16cm x 12cm/6.3" x 4.72" (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: 10 x Warm Stickers