1. material :aluminum alloy metal 2. size:88*25mm 3. battery type :3*AAA battery 4. UV wavelength : 395nm, we also can make 365.370.380.390.400nm 5. logo : laser engrave 6.certificate : CE and ROHS 7. suit for retail or event used 8.package information : 1ps/white box , 240ps/CTN