Check the listing for details. 10PCS 90 DEGREE TYPE EQUIVALENT MINI PRISM FOR TOTAL STATIONS L BAR PRISM. Condition: New. Listed at 130.50 USD. 10PCS 90 DEGREE TYPE EQUIVALENT MINI PRISM FOR TOTAL STATIONS L BAR PRISM 10 pcs L type mini prism90 degree L type prism Constant for instruments:0mmPrism constant with other instruments:34.4mmFits for total station L BAR prisms, maybe mounted on the tunnels ,roads and bridges ,dams, buildings and constructions or some other fix up places or objects for surveying ,distortion, displacement It suits different kinds of totals stations Payment: Please make payment as soon as possible after purchase (no later than 7 days after auction end).Shipping Policy:We will ship to EBAY ADDRESS within 48 hours of receiving a cleared payment. Shipping requires approximately 8 to 18 business days,but sometimes goes to 25-30 days for remote area. That is depends on the freight in different countries.Return Policy: Any problem with the item, or not satisfied with this item, please contact us within 3 days after you received the item.