Celestron 94224 Polar Telescope Finderscope, Black Polar align your Celestron CGEM, Advanced VX, or CG-5 equatorial mount with this Celestron Polar Finderscope Inserts into the polar finder port at the back of the mount The easily identifiable star patterns of the Big Dipper, Cassiopeia and Octans are etched into the reticle Eyepiece has focus adjustments for reticle clarity