Reflective wrist band save warning ,prevent children from danger customization can be available Color :there are more than 40 different kinds color can be chosed, White,red,blue ,red ,yellow and other color is availableCoefficient of reflection more than 400 cd/lx.m2Use :1) the material type can be chosed:PVC,PU, TPU2) micro prism reflective material3) many sizes can be chosed:22*220MM,30*300MM, ...