RAM mount kit for computer and keyboard;computer mount includes round base “D”ball, short “D” arm 128 mm (5 in), “D” ball forvehicle dock rear. Keyboard mount includesdock plate, “C” ball for dock plate, “C” arm145 mm (5.7 in), keyboard mount plate with“C” ball.Note: Kit includes round base with a “D”(57 mm/2.25 in) ball for mounting to thevehicle. Hardware for mounting to the dockis included. Hardware for mounting the baseto the vehicle is not included. This mounttypically requires drilling holes in the vehicle.