Here is a simple bird box style cache container that requires the finder use a coim. key or even finger tips to opperate the mechanism.
Simply rotate the slotted black box entrance to allow the inner mechanism to drop and hey presto one cache delivered to you.
To reset simply reverse the process and the cache remains tucked away inside the solid box once more.
A waterproof container, log book, pencil and wood screws are provided.
Video Clip here - https://youtu.be/J-tl8VMmvVg