Coztoy Led Flashlight Carabiner Snap Hook Keychain Fish Shape Torch Light Outdoor For Hiking Climbing (whistle (black)) Size: 3.15*0.59inch (8*1.5cm). Lightweight and portable. Suitable for camping, hiking, travelling and other outdoor activities. Key ring makes more convenient to carry it. Multifunctional, can be used both as bottle opener and as LED flashlight.