2PCS 33 mm Inner Diameter Eye Guards Microscope Telescope Eyepiece Eye Piece 32-35mm Rubber Eye Cups,Eyepiece Protector, Binocular Eye Cups Replacement - ULTECHNOVO, I6F571EF13U648V21

• 2pcs Eyepiece Cover 33mm Inner Diameter Binocular Rubber Eyepiece Eye Guards Cups Shield for 33mm Stereo Microscope Eyepieces Eyeshields Foldable eye with flat sides. The inner diameter is 33mm ( the place to be connected to the observation end of the lens ). This model can be folded, suitable for 33mm microscope eyepieces, telescopes and other lenses ( more suitable for wearing glasses, ). Eye masks are made of rubber. Rubber is elastic. So in addition to looking at the inner diameter of the eye, you should also consider rubber that is elastic and can be stretched. The soft rubber can be folded.Easy to use.Durable and practical.