The physicool 500ml coolant spray is used to recharge the physicool cooling bandage this handy spray dispenser will allow you to top-up the special cold therapy formula directly which means the bandage can remain in place maximising the cooling benefits of this lightweight support. alternatively the recharge can be applied once the bandage has been returned to the protective holding packet. 500ml of recharging coolant will give 7 recharges of the bandage - quickly reduces swelling and pain how to use: re-roll the bandage after use and affix the end using the self-grip strap then place carefully within the reusable packaging- spray the contents with the physicool coolant (approximately 70-80ml) and reseal the packet- shake the sachet for 30 seconds then leave for 2 minutes (this will allow the coolant to be thoroughly absorbed and be ready for reuse)