For doors up to 150 lbs. Ideal for wardrobe doors. Bearings take both vertical and lateral loads. Designed for mullion or frame mounting. Doors can be installed floor to ceiling. Made from .200" (5mm) gauge steel. Extra long screws provided for firm attachment. Screw holes will allow both vertical and horizontal adjustment. Full 180° opening. Pivot edges are finely polished. Set is non-handed.Note: Sold in pairs