Features: Carbon fiber and aluminum, ensures its practicality and durability, making it easy to install. Carbon fiber extension rod, 5/8" threaded connecting pipe, extension rod, rain shelter rod, extension tube, subwoofer rod. Easy to assemble, everyone can complete it in second. Simply tighten each rod to firmly secure it in place. Available in 6 lengths ranging from 10cm-60cm, it can effectively expand the ranges of the device, ensuring improved functionality and performances in various applications. Extension rod 5/8-11 threaded installation telescopic rod extender, used for horizontal RTK measurement GNSS robot antennae height measurement tripods stabilizer. Specifications: Material: Carbon fiber + aluminum alloy Length: 10cm/20cm/30cm/40cm/50cm/60cm length: approx. 10cm/3.94inch, 20cm/7.87inch, 30cm/11.81inch, 40cm/15.75inch, 50cm/19.69inch, 60cm/23.62inch Diameter: 25mm/0.98inch Interfaces: 5/8''-11 male, 5/8''-11 female Package Includes: 1 Piece 5/8 Extension rod note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.