This invention is related to a double grab, its rinsing cup and milking machine provided therewith, and the method for automatically applying test cups to the teats of an udder of an animal to be milked. The double grab according to the invention includes: —a first housing part provided with a first magnet designed to hold a first teat cup; —a second housing part, installed substantially in a horizontal plane next to the first housing part, provided with a second magnet designed to hold a second teat cup; —whereby each housing part is provided with separate pivoting means that can be activated and is designed to make the related housing part pivot around a pivoting axis which in use, extends substantially in a horizontal direction, substantially in a widthwise direction of the arm.