Ropeholder small

I am just in the beginning of learning to draw, or create 3D objects. I desidd to make something useful to me, as most of you here have done. So, for my boat I have designed a ropeholder. Screw it to a bulkhead/wall and put a 25cm long 3mm thick rope thrue the hole and make a loop. Hang a cable or rope in the loop that you then hang up in the sling of the thin rope.