Celestron 22lb Counterweight for CGEM Mount. The 22lbs Counterweight by Celestron helps you achieve balance with your Celestron Telescope by reducing or eliminating swing when the R.A. and DEC locks are released. Using accessories such as Telescope Accessories Lens Shades Tele-Extenders and the 2" Diagonal will affect the balance of your telescope. These Celestron Counterweights will restore proper balance increase ease in handling and improve tracking accuracy. Package Contents: Celestron 22lb Counterweight 94187