Vixen saddle for "D" size (Losmandy Style) dovetail, FVS2D Farpoint's "Adapts "V" size (Vixen) Saddle on a "D" size (Losmandy) Dovetail Plate Adapts "V" dovetail mounted scopes to larger mounts Variety of holes for multiple mounting possibilities Made in the USA by Farpoint Astro