Product parametersProduct material: gel, nylon, flannelProduct size: 60*45*2cm Packaging size: 22.2*17.5*8 cmNet weight: 1450gPacking: sanded bag + color boxUsage: Refrigerate, microwave oven heatCertification: MSDSProduct features1. Heat or Cold therapy - Heat and cold therapy can help with neck, shoulder and back pain. Heat therapy provides depth of comfort throughout the target area, relieving tension, stress and pain. Simply heat a hot, moist heating pad in a microwave to get a heat treatment. The cold treatment restricts blood vessels to muscles and surrounding tissues, reducing inflammation and swelling. Cool the neck and shoulder wrap of the microwave oven in the freezer for cold treatment.2. Contoured and in place - With a high collar, extra wide shoulders, extra long chest cover and rear design, this neck heating pad fits your neck and shoulders for complete comfort. Because the weight of the filler is evenly distributed, the weighted heating neck wrap maintains balance and keeps the neck and shoulders stable, so the upgraded design is generally suitable for most body types.3. Easy to use anytime, anywhere. This neck warmer or cooler provides maximum comfort and effective pain relief while working at a desk, sitting on a couch, preparing a meal, or even driving a car.Heating precautions: Microwave for 1 minute, then remove and shake evenly, turn over and reheat for another 30 seconds. Total heating time should not exceed 2 minutes.Precautions for refrigeration: Refrigerate for 1 to 2 hours.Package contentCold and hot compress shawl *1