Easy-reset maze tube designed for Geocaching

These containers are nice for a fun puzzle geocache, but oftentimes they are just as hard to reset as they are to open. I made this in an attempt to fix that!

To open it, you have to normally solve one of these puzzles. It takes about a minute or less. But to close it, you push the two halves together while shifting it back and forth. How does this work? the puzzle is difficult in the opening direction, but very easy in the reset direction, since it has no paths to accidentally fall into when closing it. 

There is a part at the bottom of the case to allow for adding a string for attachment. Use ASA or PETG for best durability. 

Sizing: the current size can fit a bison tube. To fit a small preform tube (1.25 inch diameter, 4.2 inch tall), scale both pieces to 130%. To fit a normal preform tube (1.25 inch diameter, 5.6 inch height), scale both pieces 165%.