High-Quality Emergency Safety Security Metal Alloy Whistle Key Chain -Dimensions: 4.25" * 0.4" * 0.4" (Carabiner Lobster Clip Chain Length: 2") -100% Alloy -Made in Taiwan R.O.C -Packaging Details: Individually wrapped in zip-lock bag, then as a whole in semi-opaque PE-LP bag. -Compact, durable, and loud when it counts-this Metal Whistle Keychain is designed for both function and convenience. Made from lightweight aluminum alloy, it produces a sharp, clear sound ideal for safety alerts, sports coaching, or outdoor use. The attached keyring and lobster clip let you easily secure it to your keys, bag, or belt loop, so it's always within reach when you need it most.