22.3 lb. Counterweight for Orion HDX110 EQ-G Mount Extra 22.3-pound counterweight designed for the Orion HDX110 EQ-G GoTo Mount Helps balance especially heavy telescopes and astrophotography equipment trains on the Orion HDX110 EQ-G GoTo Mount Features an easy-grip, nylon-tipped lock knob 1.25" (31.5mm) center bore fits the Orion HDX110 EQ-G GoTo equatorial mount, and other mounts with a 1.25"-diameter counterweight shaft Powder-coated in attractive black finish