Generic DSLR 15mm Rod Single Front Handle Handgrip For 15mm Rail Rod System 5D2 5D3 7D Material: Aluminum alloy, Stainless steel & Rubber&lt;br&gt;Fit for all 15mm rod system Fit industry standard 15mm Rods 60mm Rail distance system. Fit for 15mm DSLR Rig with 15mm rod clamp. Screw material: alumimium alloy,Steel. thumb screw, thumb direction can be adjustable. Screw color :silver (silver-wihte or silver-gray)