The Sunwayfoto DPG-80DR Universal Quick-Release Plate is machined from solid aluminum and is compatible with Arca-type clamps including RRS lever clamps. The plate is 80mm long, making it ideal for lenses such as the Nikon 70-200mm f/2.8 and 300mm f/2.8, as well as other lenses with a mounting foot up to 77mm long.