XtraArm Tripod Arm w/U-Grip Black. The included 3/8''-16 adapter screws directly onto your tripod allowing you to mount the XtraArm system securely and transform your tripod into a fully adjustable shooting or filming platform. With the articulating arm you can position your setup at virtually any angle with precision. The U-Grip attachment works great for virtually any rifle or crossbow providing a secure hold with smooth adjustability. This setup delivers exceptional mobility and adaptability whether you're behind a camera lens or a rifle scope. Specifications for XtraArm Tripod Arm w/U-Grip: Manufacturer: XtraArm Color: Black Fabric/Material: 6061 Aluminum Package Contents: XtraArm Tripod Arm w/U-Grip XtraArm XTR-TAU: Tripod Arm w/U-Grip Black