LOOGU Teammates Recognition Lamp Cap Lamp Headlight Helmet to Survive Life-Saving Lights Weight:0.14kg Battery: CR123A * 1 (not included) Material: high hardness steel polymer (ABS) Dimension(in): 2.2x2.6x1.1 Standard Shipping 8-15 days to USA / Expedited Shipping takes 3-6 days Ship from China