W0W ! THIS IS AN AMAZING ITEM TO SAY THE VERY LEAST. WE RAISED BOXERS FOR ALMOST 40 YEARS AND THEY ARE NOT THE BREED THAT CAN HANDLE THE EXTREME HEAT, THEIR BODIES  OVER HEAT VERY FAST BECAUSE OF THEIR SHORT NOSE THAT MAKES THEIR  BREATHING NOT THE NORMAL AS OTHER BREEDS. WHEN WE GOT THIS ITEM WE PLACED IT IN THE FREEZER AND ABOUT ONE HOUR LATER WE TOOK IT OUT AND LAID THE ITEM ON THE FLOOR TO SEE IF THEY WOULD GO AND CHECK IT OUT. NEVER THOUGHT THEY WOULD TAKE TO THE COOLING PAD SO FAST, THEY SURE DID. NOW WE PURCHASED 2 MORE AS THIS ITEM IS  """""NOT"""" ONLY FOR AN ANIMAL ! BELIEVE ME WHEN I TELL YOU ! BEING A HUMAN WITH BACK PROBLEMS, I TRIED THIS COOLING PAD ON MY ENTIRE BACK ! THE PAD WORKED SO WELL THE EVERY BODY HAS THEIR OWN COOLING PAD, IF YOU HAVE SWELLING AND OR PAIN, HONESTLY, BUY ONE OF THESE "COOLING PADS" AND YOU WILL NEVER REGRET IT ! I WOULD BUY AT LEAST 4 THEY ARE """EXCELLENT ""