360 Degree Prism Reflector ADS360°-1Leica GRZ4 Style/ 360º Prism Assembly360º Surveying PrismsSix copper coated prisms mounted in an rubber frame, Leica Style Tip Adapter on bottom. For mass point surveys, 3D profiles, solo operation, networking. Permits measurements without alignment of the instrument. Rubber sealed caps for optimum protection of prisms. Offset is +23.1mm. Survey prism for remote control and tracking applications.