SMALLRIG Coolraiser V2 Pro 4 Hole Rod Raiser Clamp/Adjustable Levers of 15mm Rods on DSLR Shoulder Rig Rod Riser System, Wingnut Black RED- 1029 The CoolRaiser V2 designed to be used on 15mm DSLR Shoulder Rig. It raises a second set of 15mm rods 30mm high from the existing rods. Featrues Ratchet Wingnut on left/right sides, not up/down. For industry-standard 15mm Rods. Adjustable Levers,Metal M5 thread Knob Screw. Ratchet Wingnut Color - Red Ratchet Wingnut