Description: Ring Inside the Barrel: The fixed eyepiece interface is equipped with a soft brass metal ring that prevents eyepieces from scratching.Anti Reflective Interior: The inner wall of the adapter is coated with matte paint, which effectively absorbs and eliminates stray lights emission without affecting the imaging of the original main mirror.Premium and Reliable: The astronomy telescope adapter is made from durable metal material, ensuring long time performance and reliability in various weather conditions.Product Dimensions: Height 5cm/1.97inch, top inner diameter 5.1cm/2.01inch, bottom inner diameter 5cm/1.97inch , this compact adapter is easy to install and use without adding significant weight or bulk to your telescope setup.Package Includes: Comes with 1SCT to 2inch telescope adapter interface, providing you with everything you need for a quick and easy installation. Specification: Material: Metal Color: Black Package Includes: 1Astronomy Telescope Adapter Note: Please allow slightly errors due to manual measurement and different monitors.