I bought two of them two years ago. They work indeed, I put my hand on them and felt cool right away.Try a pet cooling mat: Keep Cool Mat - Cat & Dog Cooling Mat
I'm in uk south too. We have fans water with ice cubes in topping up several times a day. I just read yesterday about cooling mats sold online n the BM stores so I'm going to check them out. My cats are both indoor ones. We are just not used to this hot weather are weIt’s hot for the uk, south... my bedroom reads 34°c or about 93°f it’s normally 16°c or 60°f here.