More on Amazon.com : http://www.amazon.com/gp/product/B00J7LT4FA?tag=thefatkidin06-20 <br /> <br />Neewer 140mm Professional Rail Nodal Slide Metal Quick Release Clamp for Camera with Arca Swiss <br /> <br />Multi-purpose rail nodal slide with Arca standard screw-knob clamp precision laser engraved scale and spirit level excellent for panoramic and close-up photography <br />Clamp with Captive Knob Stops at Maximum Opening <br />CNC precision machined from light weight aircraft grade aluminum <br />All metal construction <br />Black Hard Anodized Finish with smooth surface
