Manfrotto 577 Rapid Connect Adapter with Sliding Mounting Plate, 2 Stage Quick Release System

Features:

• 0.8" (20mm) of sliding travel within plate to optimally balance gear
• One 3/8"-16, one M6, and one 1/4"-20 female bottom mounting threads
• Plate has a 1/4"-20 mounting screw and a 3/8"-16 bushing, in addition to anti-twist video register pin
• 2-stage quick release system