Mamiya RB-RA Pro Seals
USCamera custom light seal kit for the Revolving Adapter used on the Mamiya RB 67 Pro camera bodies. This kit includes 2 long seals for the camera body side and 2 seals for the film back side on the adapter.
Light seal placement guide for this Mamiya revolving adapter, go here.
Removal and replacement help is always available online.
Peeling the foam from the backing can be difficult for some. This video may help.