... 4.Eco-friendily Elastic velcro band with buckle, Adjustable elastic wrist bands, armbands with velcro closureFeatures:1) Material: polyester & elastic thread2) Elastic Velcro tape is ... , 25X300mm, 25X380mm, 30X380mm, 30X500mm, 38X380mm, 38X500mm, 38X660mm, 50X650mm...etc. Black Elastic wrist band with Logo