The Breakout EDU Kit comes with a hasp.
The hasp attaches to the Breakout EDU kit and allows you to attach multiple locks to it. The players will need to remove each of the locks in order to remove the hasp and then open the kit.
To use the hasp, pull the two blue plastic pieces apart slightly opening the ring on the top of the unit. Slip the ring through the small circular opening on the Breakout EDU kit and close the ring by sliding the two blue pieces back together. Then insert the locks into any of the holes in the hasp and lock them.