Features Good Compatibility: This data collector bracket has good compatibility and is suitable for Trimble, for TOPCON, for SOKKIA, for GPS, and RTK measurements. Excellent Aluminum Alloy Material: This data collector bracket is made of excellent aluminum alloy material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. Compass Design: This data collector stand with compass can help you to recognize the direction and make your work more efficient. Compact And Portable: This data collector stand is small in size and light in weight, which makes it very convenient to carry around and use. Wide Application: This data collector bracket is widely used for highway surveying, engineering surveying and building construction. Specification: Item Type: Professional RTK Pole Clamp Material: Aluminum Alloy Package List:1 x Professional RTK Pole Clamp Package List 1 x Professional RTK Pole Clamp