1、Excellent Aluminum Alloy Material: This surveying pole adapter is made of excellent quality aluminum alloy material, which is strong, abrasion resistant, and not easily damaged, and ensures that it maintains its integrity while sustaining wear and tear in the field. 2、Integrated Molding Design: This prism GPS total atation adapter is made of fine casting integrated molding design with accurate detailing and has neat threads for very accurate connection of prisms. 3、Multifunctional: This prism quick release adapter is multifunctional and can be used for prisms, adapts to 5/8in x 11 adapters or prism rods. It is a measuring adapter for GPS, RTK total station base connectors. 4、Good Compatibility: This GPS quick release adapter has good compatibility, which is suitable for tripods, observation piers, base alignment rods, RTK, prisms and other equipment alignment connection, very practical. 5、Wide Application: This RTK quick release 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. Item Type: Prism Pole Adapter Model: QRA02 Material: Aluminum Alloy Thread Size: 5/8in x 11 Adapter Height: Approx. 40mm / 1.57in 1 x Prism Pole Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.