Product Features Neck hot compress, self-heating, magnet maintence, double the effect Acupoint magnet physiotherapy, built-in 9 energy magnets, fit the neck, care for neck health Accurately correspond to neck acupuncture points, good physical therapy effect, relieve cervical spine problems Product me: OK cloth protruding 9 magnets elastic neck support (one size) Material: OK cloth self-heating cloth Product color: black Weight (kg ): 50g Package size (cm): 19 11 2cm Note: Please allow some deviation due to manual measurement and make sure you do not mind before purchase. The color of the actual item may slightly vary from the images due to different computer screens and display settings. Thanks for your understanding! CAUTION: 1)Highly suggest to put the product in well ventilated places for odor removal before use. 2)It isForbiddento be used by people who are pregnt, prone to bleed, suffering from maligncies, high fever, fracture, skin injury, severe hypertension. Package Included: 1 MagneticNeck Support BraceEasy to wear and will not easily fall off, provide you the most comfortable experience. Compact size, lightweight and portable, this neck heating pad can be used anytime anywhere. Adjustable hook and loop type fastener strap and ergonomic shape design, fast to release or close and free to adjust the tightness, widely suit differentpeople's neck with secure custom fit. Can be used to improve sleep quality and body health, suitable for people who spend long time working before computer, sleep with incorrect position, suffer from neck and shoulder fatigue and cervical stiffness, etc. Adoptsbreathable and soft fabricto deliver comfortable and skin-friendly touch feelings without any irritation caused to your skin. Built-in 9large magnets and no infrared thermal acupuncture dot matrix will release heatand infrared energy todispel coldness,improve blood flow and promote blood circulation which canrelax muscle fatigue and relieve the paissociated with joint and neck problems.