GREEN SINGLE PRISM TRIBRACH SET SYSTEM FOR SWISS STYLE TOTAL STATION SURVEYING Effective diameter:? 65mm the prism constant : 0 mm when you use it to leica type total station. The prism constant is 0mm if you use it to another brand total station. You will get different prism constant. Contains: Prism1+ Target1 + Holder1 + Three -Jaw Tribrach1 + Adapter w/ Optical Plummet1 + bag 1. 100% Brand New , high quality. Due to variation of postal service in different areas, some areas may take a little longer. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.
