The wristband is made of silicone. This wristband is for both men and women. Size is 0.47″*0.08″. The length contains 150 mm, 160mm, 170mm, 180mm, 190mm, 202mm, 210mm. Can also be made into luminous, for the people who like to run at night to provide convenience. There are a variety of printing methods. We can rush service and the price includes shipping cost to ca. QTY over 30000pcs by ocean. Thanks for your inquiry.