Specially designed for kitchen corner cabinets with pie-cut doors for revolving shelves. Screw mounted With two 35mm (1-3/8") cup holes Max. opening angle: 78 degrees Door thickness variable: 5/8" - 15/16" (15 - 24 mm) Hole size: 35mm (1-3/8") diameter x 11mm (7/16") depth 3-way adjustability, quick mounting, concealed installation and sturdy construction. Adjustable to allow a small air circulation gap. Suitable replacement for discontinued Mepla SSP 17, 19 and 21.