USED Optisan Precision Sports Optics EVXMFCU40 EVX Metal Flip Up Covers Ocular 40mm Black. Optisan metal flip up cover fits 40mm ocular Specifications for Optisan Precision Sports Optics EVXMFCU40 EVX Metal Flip Up Covers: Manufacturer: Optisan Precision Sports Optics Objective Lens Diameter: 40 mm Finish: Matte Fabric/Material: Metal Color: Black Condition: Used Condition Quality: Good Condition Details: Defective Fit: 40 mm Ocular Package Contents: Optisan Precision Sports Optics EVXMFCU40 EVX Metal Flip Up Covers Optisan Precision Sports Optics 37554: EVXMFCU40 EVX Metal Flip Up Covers Ocular 40mm Black