Feature: 100% new and high quality. Aerospace aluminum alloy, durable. By rotating flower head, flower point will change, move, and there are different patterns. Built-in laser module to improve the cooling device, circuit boards gathering protection design. Suitable for classroom teaching, business people, conference speakers, museum, exhibition hall / tour guide, outdoor travelers, explorers, astronomers, military command or exercises. Specifications: Product name: Laser pointer Color: Silver Material: Aluminum Size: 15.5x2.2cmx2.4cm/6.1"x0.86"x0.94" Switch mode:Tail light switch ministers Power: 18650 rechargeable (Not include) Type: Violet light Start time: 3 seconds Operating voltage: DC3.7V Working temperature: 0 ~ + 30 Storage temperature: -10 ~ + 40 Beam style: Continuous line Package Include: 1x Laser pointer Not include Power) 1x Cloth cover