Description: Neck support has built-in 5 self-heating magnets which can effectively promote metabolism clear the meridians enhance immunity and relieve neck pain. Adopted adjustable high elastic strap this self-heating neck pad can fit for most people and easy to wear and take off. It is made of high quality polyester material. The length of this product is 49cm and width is 11cm. This product is perfectly suitable for elderly home travel office etc. Item Name: Self-heating Neck Pad Material: Polyester Features: Breathable Pain Relief Simple Operation Color: Black Grey Light Grey Size Details: Size: 49cm x 11cm/19.29 x 4.33 (Approx.) Notes: Due to the light and screen setting difference the item s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Self-heating Neck Pad