Finally a convenient way to provide cold or heat & compression therapy, all in one boot. No machines, cables or wires required. Help keep injuries at bay & provide much needed support to the hard working horse or those with any stiffness, soreness or swelling. Therapeutic BenefitsReduces inflammation, arthritis, bruises, injuries or controls swelling Conforms to the LegCompression powered by a hand pump helps ensure even temperature distribution Use Hot or ColdGelPaks™ adhere to an outer shell & stay pliable even out of the freezer Easy to UsePlace in freezer until cold or in hot water for 20 minutes, apply to leg with easy on/off hook & loop closures One SizeSold as a pair Cold Therapy Application Procedure Place GelPaks in freezer for six hours before initial use. After use return to freezer immediately. Lay the GelPak flat & evenly disperse gel before placing on leg. Use elastic wrap to secure on the leg & provide desired amount of compression. Hot Therapy Application Procedure Place the GelPak in hot water, temperature 71C / 160F & maintain at this temperature for 20 minutes. Repeat Steps 2-3 from Cold Therapy Instructions.