Quad Lock 360 Base - Bar Clamp Securely fit your mount to a bar using one of our Bar Clamps. Choose between a medium or small bar clamp to suit your bar size. BAR CLAMP - MEDIUM Includes 3 spacers and is designed to fit bar diameter 22m (7/8"), 25mm (1"), 28mm (1-1/8") and 32mm (1-1/4") BAR CLAMP - SMALL Includes 3 spacers and is designed to fit bar diameter 10m (3/8"), 12mm (1/2"), 14mm (9/16") and 16mm (5/8") BAR CLAMP - MEDIUM Made from tough glass filled nylon Stainless steel hardware Fits bar diameters 22m (7/8"), 25mm (1"), 28mm (1-1/8") and 32mm (1-1/4") BAR CLAMP - SMALL Made from tough glass filled nylon Stainless steel hardware Fits bar diameter 10m (3/8"), 12mm (1/2"), 14mm (9/16") and 16mm (5/8"