Skywatcher Anelli Tubolari 354mm per Telescopi 12" Newtonian/Dobsonian US
100% Genuine Skywatcher: This is not a third-party clone or generic accessory. Compatibility:Skywatcher 12" Newtonian / Dobsonian. These rings are designed to fit the following Skywatcher models (and others with a 354mm OD tube).