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Use the Celestron 17 lb Counterweight by itself or with other weights to balance your OTA and accessories on Celestron CG-5, CGEM, CG-4 mounts; or any similar mount with a 0.75" (19mm) center bore hole. A large thumbscrew allows you to lock the weight anywhere along the counterweight shaft to allow for precise balance.
In the Box
Celestron 17 lb Counterweight for the CGEM EQ Mount