DescriptionThis is a practical self heating neck wrap. It helps improve the neck blood circulation, effectively relieving neck muscle rigidity and pain problem, keep your neck warm. It is made of safe materials, which is durable for long time use. This product can be given as a great gift for your friends and families.Features-Color: Black. -Material: SBR, magnet, patch. -Size: About 47.50X9.50X0.40cm/ 18.67X3.73X0.16inch. -Self heating design, magnetic therapy can increase blood flow, help relax muscles, reduce fatigue. -Light in weight, easy to carry, put it into your bags, it will not take up much more space. -Perfect for hot muscle pain and reduced neck inflammation, promote blood circulation. -Use high-grade material to ensure durability, practical and durable for a long term use. -Heat therapy in just a few minutes, stimulating blood circulation, while soothing stiffness and soreness.