Product Name: Prisms Place of Origin: China Specifications: 1) Material: BK7 grade A optical glass 2) Dimension Tolerance: +0.0, -0.2mm 3) Clear Aperture: >80% 4) Deviation: +/-5 arc sec 5) Surface Quality: 60-40 scratch and dig 6) Bevel: 0.2mm Min Order Quantity: 1 \'\'||chr(38)||\'\'#8211; 99pcs Payment Term: T/T or L/C Delivery Time: 15 \'\'||chr(38)||\'\'#8211; 60 days