[Note: this design is still in alpha and is still being tested] Design:  A rip-off of the design of the hall pass by sparrows, you know the one. Usage:  Bypass the latch of a locked door by inserting the card over the lock, pushing it down where you can attached the hook of the card and then pulling the door and the card at the same time. Measurement:  standard credit card size (85,60 x 54.95)  with a thickness of 0.12. This design is made for practice purposes only. i recommend using a stong material for this type of project like ABS since it will be needed forcing the lock inward. Anyway support the original design, happy pentesting.