This is the clutch mechanism that operates the continuous cord loop. Sometimes the gears will strip out or the "teeth" will not grab the cord enough to operate the shade properly.
This clutch will fit into an internal tube that is about 1" wide.
You can choose between ordering just the clutch, or you can have it fitted with the continous cord loop size of your choice.
Not sure if this is the right part? Click here and send us a picture, we will tell you if it's right!