Product Description Four spacers in different designs for adapting Robert Axle Project thru-axles to different over locknut dimensions. Compatibility:Robert Axle Project thru-axles with 12 mm axle diameterManufacturer Number:RAP030 Contents:2 x Robert Axle Project 2 mm flat nylon spacers1 x Robert Axle Project 6 mm flat spacer1 x Robert Axle Project 6 mm convex spacer Manufacturer: The Robert Axle Project 45 SW Chehalem Dr Bend OR 97702 USA info@robertaxleproject.com Distributor: MERIDA & CENTURION Germany GmbH Blumenstraße 49-51 71106 Magstadt Germany vertrieb@merida-centurion.com