1. Hyperthermia or Cold : Hyperthermia and cold help relieve in the neck, shoulders and back. Hyperthermia provides deep comfort throughout the area and relieves tension, pressure and . Only need to heat the hot and humid heating pad in a oven for hyperthermia.Cold restricts blood vessels to the muscles and surrounding tissues, thereby effectively reducing inflammation and swelling. Cool the neck and shoulder wraps of the oven in the freezer for cold .2. Applicable for Body Shape: Fits the of the body and stays in place. Designed with high collar, extra wide shoulders, extra long chest cover and back side, this neck heating pad can fit your neck and shoulders, making you completely comfortable. Due to the uniform weight distribution of the filling, the weighted heating neck wrap can maintain balance and keep the neck and shoulders stable, so the upgraded design is generally applicable to most types of bodies.3. Easy to Use: Anytime, anywhere. When working on a desk, sitting on a sofa, preparing a meal, or even driving, this neck warmer or cooling pack provides maximum comfort and effective relief.Note: Precautions for Heating: Heat in the for 1 , then take it out and shake it evenly, turn it over and reheat for about . The heating time should not 2 minutes. Precautions for Refrigeration: keep it in the refrigerator for 1 to 2 hours.size: 60 x 45cmcolor: greyMaterial: Gel+Nylon+FlannelPackage Contents:1 x Hot Cold Ice PackOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.