Enhance your lunar observations with these eyepiece guards, tailored compatible for Celestron telescopes. The adjustable moon viewing filter allows you to fine-tune the light entering your eyepiece, making it easier to observe the moon's surface details. These guards also offer UV eye protection, shielding your eyes from harmful rays while you explore the night sky. Features -Color:Black -Material:Rubber -Size:4.00X4.00X1.60cm/1.57X1.57X0.63in -Sturdy rubber: constructed from sturdy rubber material, these eyepiece guards offer durability and comfort for all users -Glare reduction: effectively reduces glare and bright light, safeguarding your eyes and improving the clarity of your astronomical observations -Shock resistant design: built with a shockresistant structure, these guards provide extra eye protection against accidental impacts -Tailored fit: designed to be compatible with celestron telescopes, these eyepiece guards ensure a snug and secure fit for optimal performance -Userfriendly setup: the straightforward installation process makes it easy to attach these guards to your telescope, saving you time and effort Package list: 4 pcs x 2pcs x eyepiece eyecups