Phil Wood BB cups, installation tools and cartridgeshave been manufactured since they began in 1971. All sold separately.<li>Every Phil cartridge is compatible with PW cups and tools</li><li>All Phil BB cups use the Phil BB cup installationtool (sold separately)</li><li>British and Italian anodized alloy cups are Teflonimpregnated providing compatibility with aluminum and titanium BBshells. Installation instructions should be strictly adheredto eliminate possible galling.</li>