Carbon Fiber & Twill Design: This P-2A mini carbon fiber centre column is lightweight, weighing only 0.01kg, 20cm long in folded state, 40cm long in fully expanded state, with a tube diameter of 22mm, and a maximum load capacity of 11lbs/5kg.It is suitable for use with a flexible tripod, a mini-tripod, and can be directly used as a selfie stick. High Compatibility: With 3/8" screw connectors included, this tripod extension tube is compatible with DSLR and mirrorless cameras, as well as designed for use as a standalone selfie stick, providing versatility for various photography needs. Fotopro M-4A tripod entension tube is made of aluminum material and only weight 0.11kg, but it can load up to 22lbs. The tripod extension height can easily adjust from 230-400mm.