The listing is for One pair of black swingarm spools with 8mm mounting bolts , material: delrin, come with aluminum core for extra strength.
Spool Size: 1.5inch dia x 1.6inch Long.
They will fit for:
Suzuki GSXR600 1992-2017, GSXR750 1991-2017, GSXR 1000 2001 -2017, GSXR 1100 1993-2017
swingarm spools or sliders are designed to protect your swingarm and axle nut during crash, swingarm spools or sliders allows operator to lift the bike with a stand from the spools when changing your tire, or oiling your chain. Most bikes come with pre-threaded holes to allow operator to install the spools.