Up for bid is a end cap for Sinar view camera rail. This unit is in nice shape and works as it should. This unit is black, but will fit either black or silver rails. This is very important to have - this eliminates the potential of the standard sliding off of the rail falling. Also it makes the camera look better. Please take a look at my other listings for more high end photography equipment including a Sinar P2, Sinar DB shutters and lens, and other high quality gear. Please save me as a seller, I'm always updating my store with more gear. Good Luck, Happy Bidding.