L TYPE 90° MINI PRISM. Offset : 9.4 mm(Swiss)/ -25 mm(Absolute). Prism Diameter:25.4 mm. With rain proof cover. Model:GMP104 with extended L-bar. Widely used for structural monitoring, construction layout, tunnel surveying, bridge deformation measurement, and 90° right-angle observation in confined spaces. 100% Brand New, High Quality. We will check the situation and provide the solution.
