Super Pro Strap 'A' - BlackFinally your medium format camera (and other cameras with retaining lugs) can benefit from OP/TECH USA's patented weight reduction system. The Super Pro Strapis available in a choice of two clip designs (Version A and Version B) to better fit the different camera models on the market. Please refer to the table image to determine which version is right for your camera.Super Pro A has a 0.122-inch wide Round opening on clipSuper Pro B has a 0.162-inch wide Square opening on clipOP/TECH USA has developed a unique locking slide mechanism which adds extra protection for a secure connection. Once the metal clip is attached to the retaining lug the plastic locking slide is secured in position behind the metal clip. This prevents the clip from inadvertently opening. The slide must be removed before the clip will open. This innovative design is only available from OP/TECH USA.Super Pro Connectors are also available separately (without a strap pad.)A choice of two