Krator HBD030-10S Swingram Spool Slider (KAWASAKI ZX6 ZX9 ZX10 ZX12 ZX14 SPIKE FRAME) Specifications: High Quality Billet Aluminum Swing arm Spools/Sliders(Left & Right Sides) These swing arm spools are designed to protect your swing arm & axle nut in the event of a crash Easy installation! No additional hardware required Manufactured in China