Terms of use

The self-timer pin is inserted into the groove.
Self-timer using a photographic tapered thread is screwed similarly to the cable used for cameras.
After preparing the device for shooting - setting on the frame, focusing, etc. - the self-timer pin is removed from the groove, after which, depending on the self-timer adjustment, the shutter is released after a few seconds.
Once a month you need to self-disassemble and lubricate the leather cuff, for lubrication, you can use unsalted animal fat, castor oil, aviation oil.
Disassembly of the self-timer is as follows:
a) unscrew the tip
b) the piston is removed,
c) the spring is taken out.
After lubrication, the assembly is performed in the reverse order. After rebuilding, you must check the self-timer setting and, if necessary, make adjustments. Unscrewing the back cover is not allowed.

Carefully look at the photos and video, this is the best description of the product !!!