Mighty Bright Keychain LED Lights: Black And Silver 2-Pack 2-Pack: One Black and One Silver Keychain LED Light Bright White, Energy-Efficient LED Lasts 100,000 Hours - The Beam Is Visible Up To One Mile Press On Switch - Separate Constant-On Switch Made From Strong, Lightweight Polycarbonate - Keychain Ring Is Attached 24 Hours Of Battery Life - Lithium Batteries Are Included - Each Light Measures 1.5" X 0.25" X 1.5"