Description The rubber eyepiece covers are crafted from materials, offering durability and flexibility. They are designed to fit over the eyepieces of various optical devices, providing a secure and comfortable fit. The sleek design ensures that they blend seamlessly with your equipment, enhancing both functionality and aesthetics.- telescope Features -Color:Black -Material:Rubber -Size:5.50X3.50X2.00cm/2.16X1.38X0.79in -Size:3.00X3.00X0.10cm/1.18X1.18X0.04in -Universal fit: designed to fit a wide range of optical devices, including single and double telescopes, birdwatching scopes- microscope eyepiece sleeve lid -Enhanced comfort: the rubber eyepiece covers offer a soft and comfortable touch, enhancing your overall viewing experience- eyepiece -Longlasting durability: made from robust rubber, these covers are built to withstand regular use and harsh conditions- lens -Effortless attachment: the flexible rubber material ensures that these covers can be easily attached and removed- microscope -Travelfriendly: compact and lightweight, these eyepiece covers are for use, fitting easily into your travel gear- sleeve Sturdy construction: made from rubber, these covers are resistant to wear and tear, ensuring longterm use-microscope eyepiece Comfortable experience: the rubber material offers a soft and comfortable touch, reducing eye strain during extended viewing sessions-microscope accessory Broad compatibility: suitable for a variety of optical devices, including single and double telescopes, birdwatching scopes-binocular eye cups replacement Universal fit: designed to fit a wide range of optical devices, including single and double telescopes, birdwatching scopes-binocular eye cups Userfriendly: the elastic nature of the rubber ensures easy and quick installation on your optical devices- eyepiece lens guard cap