ER1744B Rescue tool that can be used as a key chain， safety hammer， scissors or whistle Designed to offer convenience in case of emergency Miniature design for easy carrying Built-in powerful firing pin to break car glass in case of emergency 5kg to trigger the firing pin Built-in a blade to cut seat belt when necessary Dimensions: 7.3 x 3.2cm Package Details Weight: 41.73 g Size: 15.00*7.7*1.8 cm Package Includes * 4 in 1 Mini Key Chain， Safety Hammer， Scissors & Whistle Rescue Tool Set