Professional Gel Pack Manufacturer Gel Hot Cold Pack Cooling Pad 1) Microwavable, reusable; 2) MSDS, CE tested; Gel Hot Cold Pack Cooling Pad Also known as: cold hot pack, gel pad, gel pack, compress pack, microwavable hot cold pack, etc. MaterialPVC ... . IDEAL FOR:Muscle achesPainsSinusitisMenstrual cramps. Contents: Trimethylene glycol, CMC, Water Gel Hot Cold Pack Cooling Pad