Extension rod 5 / 8-11 threaded installation telescopic rod extender, used for horizontal measurement GNSS robot antennae height measurement tripods stabilizer Extension rod, 5 / 8 " threaded connecting pipe, extension rod, rain shelter rod, extension tube, subwoofer rod , ensures its practicality and durability, making it Available in 6 lengths ranging from 10cm-60cm, it can effectively expand the ranges of the device, ensuring functionality and in various applications Easy to assemble, everyone can complete it in second Simply tighten each rod to firmly secure it in place