2Pcs Eyepiece Eye Shield Rubber Eye Guards Cups For Microscope Binocular 29-30mm

Specifications:
Material:Rubber
:Black
Inner Diameter:17mm
Outer Diameter:29mm-30mm
Size:32mm*14mm
Quantity: 2 pieces/lot

Features:
100% and high quality
rubber,can be folded, fit for 29-30mm eyepiece lens
Multiple diameter rubber eye guards eye shields
eye cups for microscope eyepiece











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