
I did a little research and found these keys as suggested door keys we have in our theater. They really were perfect for the doors I needed them for. We have two other theaters that each use different sized door keys. Do some research before you buy them as they are expensive. Make sure it's the right key for your door. Other one star ratings are a bit unfair. The headline clearly states that CRL/Jackson Hex Dogging Key Pack Full Cycle FOR USE WITH CRL/JACKSON EXIT DOGGING DEVICES with Hex Dogging by CR Laurence. If you have a CR Laurence door it would probably work 5 starts if it wasn't so expensive for 2 keys.