Feature: 1. Excellent Aluminum Alloy Material: This prism pole adapter is made of excellent aluminum alloy material, which is sturdy and abrasion resistant, not easy to be damaged, ensuring a stable and reliable connection for long lasting performance. 2. Easy To Operate: This prism survey pole adapter can be used to quickly mount and dismount GNSS, GPS, RTK measuring equipment with one hand operation, without the need for complicated operating and tools, it's very convenient. 3. Good Compatibility: This GNSS surveying quick adapter has good compatibility and is compatible with different GNSS, RTK, GPS surveying devices, total stations and leveling devices, which is very practical. 4. 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. 5. Compact And Lightweight: This GPS surveying quick release adapter is small in size and light in weight, which is very convenient to carry and use with you, and easy to install and replace. Specification: Item Type: Prism Pole Adapter Model: QRAO3 Material: Aluminum Alloy Size: Length: Approx. 36mm / 1.42in . Package List: 1 x Prism Pole Adapter