Giottos MH657 Quick Release Adapter (Black) Quick Release Adapter with MH647 Plate Sliding plate with safety lock Two spirit levels for precise positioning Sliding plate with safety lock Base with 3/8-Inch socket with 1/4-Inch bushing Two spirit levels for precise positioning Sliding plate with safety lock 1/4-Inch camera mount screw Base with 3/8-Inch socket with 1/4-Inch bushing Length: 2-3/8-Inch