The Dovetail plates are the heart of the Losmandy Secondary System. 0.6" x 1.7" x length of the tube assembly. Losmandy offers D-series dovetail plates and accessories or V-series, which are the same dimensions as the Vixen type dovetail. Dovetail plates may be mounted to the top and bottom of tube assembly for mounting of all D and V series accessories, making it possible to use both sides of tube for equipment. Mounts to all Celestron, Orion, Vixen and Meade systems. The dovetail plates, like all accessories in the Losmandy line, are machined for lightness and rigidity from aluminum stock, then black anodized for a tough, corrosion free surface.