Enhance your viewing experience with the Telescope Eyepiece Rubber Eye Shields. Designed to fit eyepiece lenses with diameters of 29-31mm or 31-33mm, these eye guards are suitable for microscopes, binoculars, and telescopes. Crafted from durable rubber in sleek black, the eye shields offer comfort and protection during extended usage. Elevate your observation sessions with this practical and affordable accessory!