Crafted from aluminum alloy, our adapter ensures performances. Its fully machined design a and prevents damage to your eyepiece barrels. Designed for both beginners and experienced astronomers, this adapter is compatible for most telescopes. Whether you're starting your astronomical journey or enhancing your equipment, our adapter is a must have accessory. breathtaking views of with ease! Simply attach our adapter to your and enjoy smooth between different eyepieces. Perfect for observing distant objects, it enhances your viewing . Fully machined, with brass protect rings; Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.