Material:optical glass Surface Quality:60/40 Dimension Tolerance:0.0/-0.1mm Angle Tolerance:3''~5'' Flatness:1/4 Lambda Product name:x-cube prism Brand:JLGD size:15*15*15mm Surface quality:60/40 Fatness:1/4 Type:cube Coating:customer request Diameter tolerance:+/-0.1 color:transparent Application:physics teaching,optical test Show More