1. Enhance your astronomical observations with the Dovetail Plate, designed for quick and secure mounting of telescopes. 2. This versatile plate ranges in size 180mm, accommodating various telescope models. 3. The equatorial holding ring ensures stable alignment, while the four screws positioning system guarantees a firm and precise setup.Making it ideal for both amateur and professional astronomers. 4. Both sides, screw holes are M5, 180MM dovetail plate (including 4 screws) 5. Whether you're a professional astronomer or a hobbyist, this dovetail plate is an essential tool for enhancing your celestial viewing experience. Length:180mm Colour:Green Material:alloy Package Contents: 1 * Dovetail plate with four screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.