Specially designed to fit the unique valve stem seal design and installation requirements on the GSX-R 1300R Hayabusa, but will also work on many other Suzuki models with 5 mm valve stems Contoured design in bottom of handle cradles and protects the delicate inner lip of the valve stem seal while directing tool force to the sturdy outer rim Properly aligns valve stem seal to valve guide so seal snaps on straight every time Rounded tip will not damage inner lip of valve stem seal or valve guide bore Anodized aluminum handles with stainless steel pilot shafts Slim profile allows easy access to valve guides Lifetime limited warranty. TOOL VALVE SEAL 5MM BUSA