If you have to use french crutches then you will need a places (points) where to hold off your crutches for a while.
The holder is composed of 2 parts - table clip and crutches clip. There are two sizes of clip (25 and 32) based on the point where the crutches are hold (driven by the height of table where the table clip is attached). The clip is loose - it does not clip tightly on the crutches, so it is easy to attach and detach the crutches from the holder.
The author hasn't provided the model origin yet.