These are the metal strips secured to the bottom plate of LPL negative carriers that keep the carrier centered in the opening in the negative stage plate and allow you to rotate the carrier. These plates are fitted to all glassless and 35mm glass LPL negative carriers supplied for LPL, Saunders/LPL, Jobo/LPL, and Omega/LPL 4x5 enlargers. Supplied as a pair.
Countersunk head screws are required to attach the plates to the carrier. If required, replacement screws are available in a package of 10 - see the listing under "Related Products" below.