Description: Longboard repair and rebuild kit, reduce noise, for bushing accessories. Fits most skateboard, keep longboard/ skateboard trucks flexible. A small but essential accessory to keep your skateboard riding stable and smooth. Reasonable design and material to avoid skateboards that break or are difficult to control. These washer cups are moderately soft and can be perfectly matched to skateboards. Specification: Material: PU Inner Diameter: 10mm/0.39inch Outer Diameter: 12mm/0.47inch Package Includes: 50 Pieces Skateboard Washers Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.