... PVC(EVA,TPU) 2.Size:OEM 3.cold use,nontoxic gel 4.Phthalate free,REACH,free samp Specifications ... compress.1. Usage: both hot and cold use 1) Hot use by microwave: Place the gel pack in a container ... longer than one minute at full power.2) Hot use by hot water: Bring 3 quarts of water to boil ... available 4. Logo and pattern- customized logo and pattern by silkscreen, offset printing or else. 5. Unit price ...