[CLEAR ] Ensure clear without blur with these flat angle microscope eyepiece eyeshields, preventing your eyes from touching the lens. [COMFORTABLE MATERIAL] Made of soft rubber material, these eyepiece covers provide a non-slip grip for a comfortable viewing experience. [EASY INSTALLATION] Designed for 40-42mm interface eyepieces, these eyeshields are simple to install and remove as a replacement part for damaged covers. [FOLDABLE DESIGN] The flat angle eyeshields can be easily folded for convenience, making them practical and space-saving when not in use. [PACKAGE INCLUDES] Each set includes 2 stereo microscope eyepiece eyeshields for immediate use on your microscope.