Description If you are looking for a professional and affordable tripod extension arm, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features -Color: Black -Material: aluminum alloy -Size: 39.00X4.00X4.00cm/15.33X1.57X1.57in Height: 225mm-390mm - Wide Application: tripod center post, monopod, selfie stick, digital DSLR mirrorless camera, camcorder and gimbal stabilizer to increase their height. - The height is adjustable from 225mm to 390mm, with a 40mm mounting plate on the top. - CNC machining makes it more stable, easy to lock and unlock, extend the center post to the ideal height and then tighten the twist lock. - The tripod extension has 1/4 inch screws on the top and 3/8 inch screw holes on the bottom, perfect for attaching the device you want. - Simple in structure, easy to use, not easy to deform, you can use it with confidence. Wide Application: tripod center post, monopod, selfie stick, digital DSLR mirrorless camera, camcorder and gimbal stabilizer to increase their height |The height is adjustable from 225mm to 390mm, with a 40mm mounting plate on the top |CNC machining makes it more stable, easy to lock and unlock, extend the center post to the needed height and then tighten the lock |The tripod extension has 1/4 inch screws on the top and 3/8 inch screw holes on the bottom, perfect for attaching the device you want |Simple in structure, easy to use, not easy to deform, you can use it with confidence