Hot and cold knee padsTea Product Model: 10331002Material: gel, nylon, flannelProduct size: middle rectangular gel bag: 46*24.5*2cm, strap: 65*5.5cmUse: Refrigerator, microwave heatingPacking list: Hot and cold knee pads*1, English manual*1, English colour box*11. Heat or cold therapy - Heat and cold therapy helps to relieve pain in the neck, shoulders and back. Heat therapy provides deep comfort throughout the target area, relieving tension, stress and pain. Simply heat a hot, moist heating pad in the microwave oven for heat therapy, while cold therapy restricts blood vessels to the muscles and surrounding tissues, effectively reducing inflammation and swelling. Cool the microwaveable neck and shoulder wraps in the freezer for cold therapy.2. Contours to your body and stays in place - With a high neckline, extra wide shoulders, extra long chest coverage and a back side design, this neck heating pad conforms to your neck and shoulders for a comfortable fit. Thanks to the even weight distribution of the padding, the weighted heated neck wrap maintains balance and keeps the neck and shoulders stable, so the upgraded design is universally suitable for most body types.3. Easy to use anywhere, anytime. Use it to relieve pain while working at your desk, sitting on the sofa, preparing a meal, or even driving.Heating precautions: Microwave for 1 minute, then take out and shake evenly, turn over and reheat for 30 seconds. Do not exceed 2 minutes total heating time.Refrigeration precautions: Keep refrigerated for 1 to 2 hours.