The addition of this equatorial wedge to the 20330 Fusion 120i mount effectively converts it into an equatorial mount capable of long-exposure astrophotography. By adjusting the elevation of the wedge to the user's local latitude, the telescope is able to move and track celestial objects in a smooth arc. Features a special latitude adjustment design which is easy to adjust, and an easy to read latitude scale. Note the telescope and mount depicted in the product photos are not included.