Indexing and flat-folding
When not in use, the PROdrive D-ring folds flat against your camera base. When using, pull the D-ring out and it will stay in the open position.
Rubber non-twist pad
The round non-twist pad and hex-drive (4mm wrench included) allows you to torque the PROdrive screw securely against your camera body in a way that resists backing out over time.
Extra-wide load bearing axle
Hang any camera/lens/accessory combination securely from the PROdrive screw.