A Great way to warm the post surgical patient WITHOUT SPILLS OR MESS and No electric needed. Just heat in Microwave for approx. 2 mins -check for temp-place under bedding. Lasts for hours! Also HELP KEEP YOUR FUZZIES COOL IN THE SUMMER HEAT!!! This is an AWESOME way to help your Fuzzy friends keep cool on those hot days of Summer... Just chill "COOL" pak in freezer for over an hour and place in cage or under bedding for cooling effect for hours. NO SPILLS, or MESS with these FLAX seed filled paks, Easy to use and instructions are included. Comes with Removable outer Fleece sleeve for laundering. (approx.size 10" x 10") Proceeds benefit Medical, Food and Supplies for the many Older, Sickly and Previously Unwanted Ferrets we have taken into our private home -IN the last year aka: LITTLE FEET FERRET RETREAT -check them out and our awesome bedding store at : http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2336889414 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2336888158 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2336888726 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2336888953 [Posted in FML issue 4218]