You can never be too careful when you’re out adventuring, and one great way to prepare is with Pocket Balls. Pocket Balls mini instant heat packs are re-usable and non-toxic. Pocket Balls are fantastic if you don’t have a lot of space but want to be prepared in case of a minor injury. They are easy to use (you simply click the metal button) and they start to work instantly. And if you aren’t injured and the weather is getting cold, they are also great warmers! Stick one in each sock, or in your pocket and you’ll be warm for hours. The cute designs mean they are great for all ages. Available in Football/Rugby, Soccer Ball, Golf Ball, Cricket Ball, Tennis Ball, Basketball and Magic 8 Ball.