A GT2-10mm strap is used to attach the holder, a length of 40 cm is sufficient for most lenses.
It is locked with M3 screws.
It is advisable to stick the shoes (part C) with 1 mm thick self-adhesive tape.
Two versions are available for fans 60x60x15 and 50x50x10.
The author marked this model as their own original creation.