The Res Q Me tool is able to cut through seat belt material in seconds, simply hook the tool over the belt and pull. The sharp steel blade is protected for your safety as well. The Res Q Me? features an ingenious spring loaded system for shattering tempered glass. Simply push the flat surface against a window until the concealed spring loaded spike releases to break the glass. Only 12 pounds (5kg) of force is needed for use. With this device on your key chain, you become a safety provider to others as well, including parents and pet owners.