Manfrotto 200PLARCH-14 Architectural Anti-Twist Quick Release Plate with 1/4-20" Screw

The Manfrotto 200PLARCH-14 Architectural Quick Release Plate
finally provides a solution to the tired problem of unwanted movement
between gear and quick release plate. This plate, which works with the
Manfrotto RC2 Quick Release, features a metal lip which can be
positioned in front or in back of the camera/tripod collar to eliminate
rotation. Especially ideal for vertical shooting.