[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 metal material, ensuring long time performance and reliability in 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. Colour:As Shown Material:Metal Package Contents: 1 x Astronomy Telescope Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.