This Vixen generic adapter attaches to the Nikon T-Ring (or other brand) of your camera (sold separately) to connect to either the coma corrector of a R200ss telescope or the 60mm draw tube of a VC200L telescope. This allows direct wide field photography, without using a 1.25″ barreled T-adapter. This kit comes with an adapter ring, screwdriver, Allan key, and instructions.