1.Material : Magnet,far infrared ray 2.protect the waist, prevent damage 3.promote the blood circulation Specifications1.Material:rubber,nylon,titanium ,ion ,germanium ,Magnet, FIR 2.Size:free size3.MOQ:1000pcs4.Color:blue or any other colors are offered5.Logo Printing :embroidery , hot-transfer print , woven label, platic logo , as customers need 6.Function :protect waist,keep warm and safe, ...