Sold as pairs. 6061 Aluminum. Extruded, CNC-machined body. Heat-treated Cr-Mo axle. Low stack height. Tubular LSL bearings. Anti-slip surface. Replaceable pins. Size: 113x105x16.3mm  Weight: 312g pair. 

A low profile body means greater ground clearance and increases pedaling efficiency by placing the foot closer to the centreline of the axle.