The WMP Valve Stem Seal Install Tool Set provides three common sizes (4.0mm, 4.5mm and 5.0mm) for use on most modern street bikes, plus one additional 5.0mm tool specially designed for Suzuki Hayabusa and other Suzuki models that use the same seal. The set is constructed with anodised aluminium handles and stainless steel pilot shafts, all provided in a convenient, durable case.