This set of universal lock out tools if marketed for auto emergency specialist, such as locksmiths and tow truck drivers. They should be used by professionals of this type only. They will assist you in opening your car door when the keys are accidentally locked inside. This set includes a thin bar, a wide bar, a wire "S" hook and a slide lock tool. Also includes a plastic wedge, and a gas cap tool in case you can't unlock your gas cap.This set includes 7 pieces, and a written manual of instructions for useThis set is equipped to work on many different makes and models of cars-weighs 11 ouncesThe book gives specific instructions on how to open locked car doors and gas capsThis set is only available for sale to security, emergency and automotive related industriesThis set comes in it's own vinyl case with a clear front panel