Measures Approx. 3-1/4" Wide x 1/2" High x 1/16" Thick

This does not clamp on.
It slides into a sewn in pocket on top of a fabric vane.
It slide into the pocket and will stay there with no glue.
The loop of fabric at the top, hold the fabric insert into place.

Measures Approx. 3-1/4" Wide x 1/2" High x 1/16" Thick
Slides into the top sewn loop of a fabric vertical blind vane.
Allows you to attach fabric vanes onto a vertical blind track.
These do not glue to the vanes, There is no glue.