This is one set of medium duty flipper door slides with permanently affixed follower bracket. One slide goes at the top of the opening and one at the bottom. A follower board is fabricated by the user to go between these slides. Full overlay euro fully concealed hinges are attached to this follower and to the door as in the illustration. Installation requires not ordinarily found around the house and some cabinet-making skills. Not difficult if you have the proper tools and skills.