The Kit includes: Screws M10x1,25x20 - M10x1,25x20-Left - M10x20 - M6x16 – M8x25 – M8x25-Left, washer required for assembly. This adapter has been specially designed to replace your OEM clamp (with hole centre-to-centre of 32 mm) fitted to the rear of the brake/clutch pump with a handlebar diameter of 22 mm. It allows you to mount mirrors with male thread M10x1.25.