USCamera custom light seal kit for Mamiya Press or Super 23 6x9, 6x7, and 645 film backs.  This is the replacement seal kit that includes 2 door channels seals on the door, 2 front plate seals where the back attaches to the camera(supplied in 2 pieces for ease of installation), the door hinge seal, and the door latch plate seal. |Light seal foam removal and replacement information is always available online. USCamera light seal placement guide for this Mamiya film back here. Peeling the foam from the backing can be difficult for some. This video may help.