Lightweight and easily concealable in the palm of your hand, the Columbo Keychain is the perfect keyring accessory. This 100 lumen light features twist-to-activate functionality for easy one-handed operation and a keyring attachment for convenient portability. Keyring loop Aircraft-grade aluminum Waterproof (IPX7) and impact-resistant modes High (100 lumens): 1 hours / 56 meters included accessories 1 AAA Alkaline battery operation Twist to activate