Neewer 15mm C-Shape Support Mount Bracket + Top Handle Grip for DSLR/DV Support System Rig 15mm C-Shape Support Mount Bracket + Top Handle Grip for DSLR/DV Support System Rig. Used together with follow focus, matte box, camera cage, LCD monitor etc. Compatible with 15mm rail rod support system. The Handles with anti-slip rubber grips give your arms rest while shooting. Ideal for making video with movable scene or micro shoots.