Feature: 1. [70mm Aperture] Our telescope guiding scope ring features a 70mm aperture, accommodating astronomical telescopes with a diameter ranging from 50 to 70mm. 2. [Stable and Secure] The connection with the base is flat (not curved) to avoid shaking and ensure stable connection, 14mm widened design ensures stability. 3. [Metal Design] The finderscope guiding scope ring is made of aluminum alloy, sturdy and built to last, ensuring durability and longevity. 4. [M6 Screws] Equipped with three 15mm M6 locking screws with protective heads, which can prevent scratching when secured in place. 5. [Compact and Portable] This guide scope ring boasts a compact design that allows for easy carrying, can conveniently fit into a backpack or pocket. Specification: Item Type: Telescope Guiding Scope Ring Material: Aluminum Alloy Aperture Support Range: Approx. 50-70mm 1.97-2.76in Inner Hole Diameter: Approx. 70mm 2.76in Outer Frame Diameter: Approx. 79mm 3.11in Frame Width: Approx. 14mm 0.55in M6 Screw Length: Approx. 15mm 0.59in Color: Red. Package List: 1 x Guiding Scope Ring 3 x M6 Screws 1 x 14 Inch Screw