Summary

Slightly Longer Pins and an added tab on the back allows this lock ring to better stay in place when opening and closing the cryptex.

Instructions

Attaching:
Align pins, gently press it downwards. The ABS i use everything flexes enough for it to slip down nicely. Once down give it a gentle twist and it should settle.

Removing:
Gently twist until rear tab slips out of the notch. One pin should come out of the socket, press the lock ring towards it and the other pin should slide out easily enough. (Simplified: Twist, Wiggle & Pull :)

Improved Lock Ring