2pcs Rubber Eyecup Eyepiece Cover Guards for Stereo Biological Microscope or Telescope Caps No.4

["Set Contents: Each bag contains 2 rubber eyepiece eye guards—an ample quantity that serves as a convenient backup.","Wide Range of Applications: Suitable for optical instruments such as stereomicroscopes, biological microscopes, wide-angle microscope eyepieces, and telescopes.","Premium Materials: Crafted from rubber, featuring a soft texture that ensures a comfortable fit and effectively protects the eyes.","Protective Function: Effectively blocks external stray light interference to enhance viewing quality, while simultaneously protecting the eyepiece lens from scratches.","Brand-New Quality: Fresh from the factory, offering reliable quality and easy installation; it can be fitted directly onto the eyepiece for immediate use."]