Leica Single Prism Station 1. 6 years' experience 2. Professional Manufacturer 3. High Quality 4. Competitive Price Leica Single Prism StationEffective Diameter: 65mm, Offset: -30mm/0mm. It includes prism, holder, adapter, tribrach with optical plummet and plastic case for packing. Black prism canister, Green metal adapter&tribrach. Leica Single Prism Station