shenruifa Telescope Tube Rings, Aluminum Alloy Optical Tube Clamp with Padding Strips for 80mm to 90mm Astronomical Telescope

["Versatile Compatibility: With an inner diameter of 90mm, the rings can adapt to 80mm tubes using padding strips, fitting various telescope tubes and equatorial mount accessories with flexibility and ease.","Integrated Dovetail Plate: Equipped with a 108mm dovetail plate that supports connections to equatorial and altazimuth platforms. It includes through hole and a 1/4 inch threaded hole for external accessories like camera tripods.","User Friendly Bolts: The bolt design focuses on grip strength, allowing easy adjustment of tension even when wearing gloves in cold environments. This feature enhances practicality and user experience.","Protective Inner Lining: The interior features anti scratch velvet lining to effectively prevent scratches and dents on the tube, ensuring dependable clamping while preserving the equipment's appearance, ideal for precise telescope tubes.","Robust Metal Construction: Made from high strength metal with an ergonomic handle, the telescope optical tube clamp offers a sturdy structure and easy portability, ideal for outdoor observation and mobile setup usage."]