Features: The adapter offer a coaxial locking mechanism for secure telescope accessory connection, ensuring compatibility with Watcher telescopes and various astronomy equipment to enhancing user experience. Made from good quality aluminum alloys, this thread converter provides precise inner and outer thread engagement to prevent loosening and maintain stability during astronomical observations. Designed for both beginner astronomers and professional users, this light weight adapter simplifies installation without extra tools, making it accessible for all skill levels. Ideal for outdoor stargazing, camping trips, and travel adventures, its compact and portable design allows for easy carrying during various astronomical activities without added burden. Boosting your telescope setup with this reliability locking sleeve, delivering accuracy and convenience for seamless accessory integration in any observation environment. Specifications: Color:Three Choices Dimension:77x28mm/3.03×1.1in Component:Metal Package Includes: 1pc High Precisions Threaded Adapter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.