Specifications: Material:Rubber Color:Black Inner Diameter:17mm Outer Diameter:29mm-30mm Size:32mm*14mm Features: 100% brand new and high quality Soft rubber,can be folded, fit for 29-30mm eyepiece lens Multiple diameter rubber eye guards eye shields eye cups for microscope telescope eyepiece Package Included: 2×Eyepiece Eye Shield Rubber Eye Guards Eye Cups.
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