Ltpgtthe 66fit rampampr soft coldhot pack features a non toxic gel that retains heat or coolness for a minimum of 60 minutesltpgtr ltpgtthe coldhot packs gel remains soft and flexible after freezing even in temperatures as low as 20 degrees celsiusltpgtr ltpgtltstronggtfeaturesltstronggtltpgtr ltpgtltstronggtsizeampnbspltstronggt285cm x 115cmltpgtr ltpgtltstronggtcold therapyltstronggt place in freezer for at le