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 and the base is flat (non curved) to avoid shaking after connecting to the base, ensuring stable connection.
3. Width Widening: The guiding scope width is increased by 14mm, providing large and sturdy contacting. The 90mm guiding scope hole diameter supports 70‑90mm astronomical telescope diameters.
4. Thickened : Aluminum alloy design, sturdy, with a long service life. M6 screws come with scratch 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 . Just take it out and install it when you use it. Its convenience and portability make it an ideal accessory for astronomical observations.

Spec:
Item Type: Guiding Scope
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

How to Use:
Install the screws to use.

Package List:
1 x Guiding Scope
3 x M6 Screws
1 x 1/4 Inch Screw