The cam-lock mechanism of these patented post holders, when locked, wedge optical posts tightly against two lines of support to provide a more rigid hold than typical optical post holder designs. The cam-lock is easily operated with one hand while an optical post is positioned in the holder, where releasing holds the post in place and a final, secure hold is provided by a thumb-turned screw. Clamping and releasing does not introduce rotation or translation to optical posts, unlike those locked with single thumbscrews. Quick adjustments can also be made by pushing in the locking screw.

These post holders feature a 1/4-20 (M6) threaded hole at the bottom and therefore can be threaded directly into an optical table. Alternatively use a 9910 pedestal base adapter and a holding fork, or use a slotted mounting baseplate like 9912 or 9914 to mount it anywhere on the optical table.