Available in three lengths of 10cm / 20cm / 30cm, with a diameter of 15mm, it can be used as a spare part for corresponding screws in equipment or as a substitute for camera screws With smooth thread, without burrs, and provides excellent grip strength, enabling stable and safe clamping, making it and disassemble iron, with reasonable structure and long service life, it is the best alternative to adapters Suitable for any DSLR camera tripod, monopod, microphones,, lens board, lamp holder and more Multifunctional, this extension rod is with three functions: 3 / 8 to 3 / 8 fixed rod; 1 / 4 screw hole to 3 / 8 screw adapter extension rod; 1 / 4 screw hole to 1 / 4 screw hole, 3 in 1 photography stand