Heat...anywhere! Anytime! Simply flex the little metal disc, and they become hot instantly! 

Instant heat pack gives instant heat up to approximate 130 degree F/ 54 C when activated. It could be used outdoor.

For physiotherapy, it works especially effective on muscle aching, back aching, cramps,arthritis pain, tenontodynia and etc. the heat pads are a novelty exciting useful health product and gadget.