Fits Potdevin NTZ gluers. Normally one for every two inches of the gluer width.
Finger assembly is also used on some Type Z gluers when difficult items are being glued. The longer fingers change the angle of contact with the gluer roller. Some applications use more fingers per inch. If you find your item being glued is tearing it may be due to the number and style of fingers.
Sold as a pack of 4.
