PRODUCT DESCRIPTION:Here's a more portable green laser pointer, extra handy for presentations and playing with pets. Put it on your keychain and you'll never be without it! This laser pointer also comes with a cap that diffuses the laser beam into many starry patterns when you rotate it. When you want a single dot again, just remove the cap! Package includes laser pointer, star cap, and storage case.TECHNICAL SPECIFICATIONS:Bright green laser on handy pocket-size keychain!Comes with a cap that diffuses the single beam into many patternsPerfect for astronomy, presentations, and pets!Length: 8cm / 3.14"Powered by 1 x AAA battery