Matte Black Anodized Aircraft Aluminum Construction with Reinforced Steel Components Designed from the Ground Up to Withstand Big Bore Calibers up to .50 BMG. Reinforced Picatinny Mounting Base Features a Longer Surface Area Equipped with a Squared Steel Crossbolt. 3 Position Folding Legs Equipped with Oversized Serrated and Rotatable Steel Foot Pads. Lockable and Height Adjustable Legs Provide a Center Height from 9.4″-14.0″ and a Wide 70 Open Angle for Increased Stability. Tension Adjustable 35 Panning and 55 Left and Right Tilt. Posi-lock Push Buttons Feature a Large Surface Area for Easier Use while Wearing Gloves