Upgrade your telescope experience with this 3-piece set of 1.25-inch eyepiece focusing rings, devised for seamless magnification adjustments. Crafted from , precisely processed aluminum with a sleek black anodized finish, ensuring durability and a professional look. Easily convert standard non-focusing eyepieces into focused optics, enhancing your observation efficiency and clarity. Ideal for both amateur and professional astronomers, this set is perfect for calibrating eyepieces used in imaging or guiding. Each package includes three focusing rings, allowing for versatile use and customization of your telescope setup for optimal performance.