Features:1. Simply hit the gel, apply the pack directly on your problem area and enjoy comforting, fast-acting heat.2. Unlike one-use heat packs, hand warmers are completely reusable Just drop them into boiling water for a quick recharge and you're ready to go. 3. Keep in pockets for winter sports, outdoor events or cold weather activities and even simple heat therapy releasing pain for your sore joints, muscles, use as hot stone therapy etc.4. Designed for Versatility: Thanks to the compact, portable size, our heated cushions offer go-anywhere convenience From pain relief during your morning commute to hand warmers on a ski trip, the soft gel pack allows you to target any part of the body.5. Expertly crafted and made with food-grade ingredients, you can rest assured knowing that our heating pads are non-toxic and FDA certified And because the plastic material is BPH-free, they're a great choice for users of all ages.Specification:Material: PVC GelSize: 8.5 x 11.5cmStyle:RandomNote:1. The color of the product may be slightly different from the picture2. Due to different manual measurement methods, please allow slightly different sizesincludes:1 x Hand Warmer