Feature 1 Applications: The extension arm can add extra height to the tripod, suitable for landscape photography, portrait photography, etc., to shoot a wider range of beautiful scenery, and also suitable for low angle macro photography, adding more possibilities and diversity to shooting. 2 Flexible Angle Adjustment: The central axis bar can move horizontally, rotate 360 degrees and tilt 180 degrees, allowing you to freely adjust the shooting angle to meet your various shooting needs. 3 3/8 Inch Screw and Holes: The base has 3/8 inch screw holes for easy mounting to most tripods, ball heads, monopods, etc. Also features 3/8 inch screws, compatible with most cameras. 4 Durable: Made of sturdy aluminum alloy material, the tripod extension arm is sturdy and durable, the diameter of the shaft tube is 25mm, and the bearing capacity is up to 10Kg. 5 Strong Locking: The screw knob locking system of the extension arm makes operation easier and faster, more stable and convenient to use.Item Type: Tripod extension armMaterial: Aluminum alloy, rubberGross Weight: 827g / 29.2ozLength: 49cm / 19.3in(excluding screws)Bearing Weight: 10kg / 22.0lbPipe Diameter: 25mm / 1.0inHorizontal Axis Thread: 3/8 in screwBase Screw Interface: 3/8 in screw hole Package List1 x Tripod Center Column Extension Arm1 x Base