These are the axle screws and washers for a set of Quad hubs. These simply replace the existing pieces that came on your hubs or wheels. 6061 Machined aluminum. Comes as a complete set for both front and rear wheel.
Set comes with 4 screws and 4 washers for a front and rear hub
These kits will work with Rhythm 28H hubs but may not work with other brand hubs.