Crafted from aluminum alloy, our black 1.25inch Collimation Eyepiece is . Its threaded design ensures a , while its compact size makes it easy to carry and store. Designed for astronomy enthusiasts and , our 1.25 inch Collimation Eyepiece is a must have tool for accurate collimation. Perfect for both beginners and experienced stargazers. Whether you're observing universe objects or capturing breathtaking astrophotography, our 1.25inch Collimation Eyepiece for high performances. Take your stargazing to new height. Improve your setups with our 1.25 inch Collimation Eyepiece. sharper images, improved , and enhanced overall viewing satisfaction. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.