Krator SPL-001 Black Swingram Spool Slider (Low Profile 8mm Honda CBR 600RR 1000RR 900RR 954RR Suzuki GSXR 600 750 1000 1100 1300R Hayabusa) Specifications: Low Profile Mini 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