The Master Lock No. 90KADSPT Keyed Trigger Lock features a steel and zinc body for maximum durability. The protective rubber pads protect gun's finish from marring or scratching. The limited lifetime warranty provides peace of mind from a brand you can trust. Features: The world standard in trigger lock design Steel and zinc body for maximum durability 4-pin tumbler cylinder helps prevent picking Special rubber pads protect gun's finish from marring or scratching Keyed alike - one key opens all locks