Leofoto Arca&Picatinny Lever-Release Hybrid Clamps Black. These redesigned clamps feature a lever release for quick and easy attach/detach and have a width adjustment screw for non-standard arca and picatinny rails. They come in both a round and square shape to match the head. Specifications for Leofoto LRC-70 Arca&Picatinny Lever-Release Hybrid Clamps: Manufacturer: Leofoto Color: Black Quantity: 1 Features of Leofoto LRC-70 Arca/Picatinny Lever-Release Hybrid Clamps Aluminum CNC Machining Package Contents: Leofoto LRC-70 Arca/Picatinny Lever-Release Hybrid Clamps Leofoto LRC-70: LRC-70 Arca&Picatinny Lever-Release Hybrid Clamps Black