Crank Brothers Stamp 11 Platform Pedals. Features: Forged, machined aluminum platform with lightweight titanium spindle 2mm concavity, 11mm thick at the center Offered in small and large sizes for optimal shoe-pedal interface Premium bearings with double seal system 10 adjustable traction pins per side 5 year warranty Specs: Model:small Size:9/16" Color:black Weight:299g