1Excellent Aluminum Material: This prism adapter connector is made of excellent aluminum material, which is strong and abrasion resistant, not easy to be damaged, and has a long service life. 2Fine Casting Integrated Molding: This RTK quick release adapter features a fine casting integrated molding design that features accurate detailing and has fair threads for easy installation. 35/8in11 Thread Connector: This prism pole adapter has a 5/8in11 thread connector, 30mm long, suitable for centering connections on tripods, observation piers, base alignment rods, RTKs, prisms, and other equipment. 4Compact And Lightweight: This prism survey adapter is small in size and light in weight, which makes it very convenient to carry around with you and use it, and it is also very easy to install. 5Wide Application: This survey pole adapter has a wide range of applications and can be used for measuring bridges, roads, tunnels, railroads, buildings, houses, etc. which is convenient and practical. 1 x Prism Adapter