Reusable Hot and Cold Pack designed for hot and cold therapy.;For the correct therapeutical application for cold and hot treatment for sprains and strains. ; Provides effective relief from muscular pain and helps reducing swelling. Great for treating a wide range of soft tissue injuries Pack last longer and is more effective than standard ice packsFor cold use: Place pack in freezer for up to 2 hours before use. Wrap in a cloth or protective sleeve before use and use pack in short intervals of no more than 20 mins.For hot use: Place pack in microwave 600w for 20 seconds increasing heating time in 10 second intervals.;Wrap in a cloth or protective sleeve before use and use pack in short intervals of no more than 20 mins.WARNING: Never place pack directly onto the skin as extreme temperatures can cause burns.;