Quad Lock 360 Bar Clamp Base Experience hassle-free attachment of your Quad Lock Phone Mount to your machine with ease. The reliable bar mount is designed to be straightforward and sturdy, available in two sizes to fit bars ranging from 10mm (3/8) to 32mm (1 1/4) in diameter. Features: Available in 2 sizes to fit a wide range of applications Includes 3 spacers to dial in fit Includes 3MM hex key Small Fits 10Mm (3/8) to 16Mm (5/8) Medium Fits: 22Mm (7/8) to 32Mm (1 1/4) Note: Bar mount only, Quad Lock Case and Mount sold separately.