1、Extended Distance: The tripod extension arm extends photographing length and width by a carbon fiber pipe, can be used as additional center column, allowing free expansion from 50 to 81cm for convenient use. 2、Sturdy Construction: The tripod boom arm features sturdy aluminum alloy construction used on connection area, rust resistant and drop proof, supporting up to 5kg maximum load capacity. 3、360 Degree Rotation: The extension boom arm supports 360 degree horizontal rotation, keeping your camera at the angle you desire, perfect for indoor outdoor studio macro photography and low angle photography. 4、Portable Design: The camera mount extension arm comes with a storage bag for easy storage after use, lightweight and convenient to carry outdoors. 5、Wide Compatibility: The aluminum alloy tripod extension arm can be mounted on any tripod with a 3/8 inch screw, with detachable 3/8 inch screws at both ends that can be converted to 1/4 inch screws, compatible with most ball heads, cameras, or camcorders. Item Type: Tripod Extension Arm Material: Aluminum Alloy, Carbon Fiber Retractable Length: Approx. 50-81cm / 19.69-31.89in (Please allow 2cm error) Maximum Load Capacity: Approx. 5kg / 11 lb Center Column Thread: 3/8inch Thread and 1/4inch Thread End Screws: 1/4inch Screws and 3/8inch Screws (Removable) 1 x Tripod Extension Arm 1 x Storage Bag