ANTI SCRATCH DESIGN: Adjustable guiding scope ring is equipped with three 15mm length M6 screws. Each with a protective head, which can effectively prevent the device from being scratched when fixing
FLAT DESIGN: Telescope guiding scope hoop is designed with a flat surfacing instead of a curved surfacing where it meets the base, which prevents it from shaking after connection and improves the stability of the connection
WIDENED DESIGN: The width of the polar scope metal adapter ring is widened to 14mm, which can provide more touching surfaces and make the connection safer and more stable
COMPATIBILITY: The 40mm guiding scope ring supports 20‑40mm diameter telescopes. Compact size, easy to carry. You can put it into your backpack and take it out to install and use at any time
FULL METAL DESIGN: This astronomical telescope guiding scope ring adopts full aluminum alloy design, sturdy, stable, long service life and not easy to be damaged, which also can fit onto the polar finder of most common mounts