1. [EXCELLENT ANTI-SCRATCH DESIGN] Enjoy peace of mind with our telescopic guide tube ring, which includes three durable M6 screws with protective heads. This innovative design ensures that your valuable equipment remains protected from scratches during installation, so you can focus on stargazing with confidence. 2. [BETTER STABILITY] The scope guide ring features a unique flat surface design that provides a solid connection to the telescope base. This ingenious feature minimizes camera shake, which improves stability and ensures every detail of the sky is captured without compromise. 3. [WIDER FOR SECURE CONNECTIONS] Get greater security with our 14mm enlarged guide tube ring. The larger contact surface ensures a firmer grip on your telescope and reduces the risk of slipping, allowing you to enjoy your astronomical adventures without interruption.
4. [EXCELLENT COMPATIBILITY] Designed to fit a variety of telescope sizes, this 40mm guide tube ring is suitable for telescopes with a diameter of 20mm to 40mm. Its compact size allows for easy transportation, making it perfect for both casual astronomers and serious astronomers. 5. [Durable Construction] Made entirely of high-quality aluminum alloy, this guide bezel ring is both sturdy and reliable. Its sturdy construction not only ensures a long service life, but also makes it resistant to damage, making it your faithful companion on every observation trip.

Data Techniques:
Item Type: Telescopic Guide Tube Ring
Material: Aluminum Alloy
Hole support range: 20-40mm/0.79-1.57 inch
Inner hole diameter: 40mm/1.57 inches
Frame outer diameter: 49mm/1.93 inches
Frame width: 14 mm/0.55 inches.
Colour: Red

Comment to use:
Attach the screws and it's ready to use.

Package List:
1 x telescopic guide tube ring.
1 x M6 Screw
1 x 1/4" screw