Features: High-quality material: Made of aviation aluminum alloy, strong and durable, not easy to break, and can be used for a long time; Children Safety: The flashlight comes with a children safety lock. When not in use, you can turn the switch key to the red-dot and pull it out to disconnect the power supply; Easy to use: On/off button, power lock protection key and anti-slip handle ensure stable holding, adjustables-focus, easy to use Exquisite workmanship: This lasers pen has exquisite workmanship and excellent material, which can bring you a good use experience. MULTIPLE USES: This lasers pointer can be used for presentations, teaching instructions, children39;s entertainment and more. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: aluminum alloy Size: about 15.8*2.2 cm/6.22*0.86 inches Wavelength: 532nm Power: 100mW Battery: 1*CR123 battery not included Package List: 1 x Lasers Pen