For removing the fork cap and compression cartridge on twin chamber Showa forks found on late model motorcyclesOuter ring fits 50 mm octagonal fork capInner body holds cartridge so it can be removed from fork capOuter ring can be clamped in vise to hold fork cap securely while cartridge is being removedProvides more secure grip on fork cap and cartridge and reduces risk of damage during disassemblyBillet 6061 aluminum construction with anodized blue finish1/2 inch square driveLimited lifetime warranty