Item was made aluminum alloy with at the bottom allow quick and precise centering of the optics.; Fits in 1. 25 inch and easy to use. Simply caps the telescope, remove the diagonal, and place the eyepiece directly in the .; For aligning optics of Newtonian reflectors and Schmidt- Cassegrain telescopes.; The short collimator for mirror ( reflector ) telescopes has a 45 degree plate for easier visual accuracy.; Item was made aluminum alloy with at the bottom allow quick and precise centering of the optics.
What's in the box
1 x Telescopes