1 15mm Length M6 Screw: Each of the 3 lock screws comes with a protective cap to prevent scratching during fixation. They can avoid unaesthetic scratches and pressure marks on the telescope while still ensuring reliable clamping. 2 Flat Surface Design: The junction of the guiding scope ring and the base is flat (non curved) to avoid shaking after connecting to the base, ensuring stable connection. 3 Width Widening: The guiding scope ring width is increased by 14mm, providing large and sturdy contacting. The 90mm guiding scope ring hole diameter supports 70-90mm astronomical telescope diameters. 4 Thickened Ring: Aluminum alloy design, sturdy, with a long service life. M6 screws come with scratch resistant rubber caps, reducing the likelihood of leaving traces after scratching. 5 Compact and Portable: Easy to carry and can be put into a backpack or pocket. Just take it out and install it when you use it. Its convenience and portability make it an ideal accessory for astronomical observations.Item Type: Guiding Scope Ring
Material: Aluminum Alloy
Aperture Support Range: 70-90mm
Inner Diameter: Approx. 90mm / 3.54in
Outer Diameter: Approx. 99mm / 3.90in
Frame Width: Approx. 14mm / 0.55in
Color: Red
What's in the box
1 x Guiding Scope Ring
3 x M6 Screws
1 x 1/4 Inch Screw