Do their job used it today as hot pack easy to heat in microwave follow instructionspreviously used as cold packequally goodso serves dual functioni am an active sportsman and it is an aid to injury recoverynot expensiveworth while buy as i get older i regularly use these following exercise

These are a good size to cover most muscle groups and i use a wrap round calf support strap to hold in place when moving round which i also got from amazon