Generic Led Safetyflash Reflective Flexible Visible Belt Wrist/ankle/armband It ships from China. Usually takes 9-15 days for arrival, sometimes, it would be sooner than this deadline. Dimensions: arm band Size: arm belt length: 32 CM width 2.5 CM Material: nylon coated fabric + supplement LED electronic Battery: 2 PCS CR2032 button batteries Luminous time: - 70 hours, Package: 1X led arm band