Simple screw eye pulley 20 mm diameter, in black polypropylene.
This pulley is composed of a single black roller in polypropylene, with a round 4 mm wide horn and a galvanised screw eye mounting. Its hub is riveted.
It is ideal for small blinds for example. It can be used with 4 mm diameter thin cords or cables.
The advantage of this polypropylene roller resides in the fact that it is very resistant to fatigue, traction, high temperatures, chemical agents...