The Blum CLIP mounting plate technology makes attaching or removing your cabinet doors easier than ever! The Blum CLIP Top hinges simply clip on and off of the mounting plate. The cam adjustment increase the alignment better than the average hinge plate, creating a kitchen anyone could be proud of. This innovative technology and award-winning design are at the top in quality. The 3 mm plate height is generally for 3/4 in cabinet box material. The plates simply screw into the inside of your cabinet box with two standard #6 Robertson x 5/8 in wood screw, which are sold separately. Ask us about Onyx Black Hinge options!