Thank you for viewing. This is the GIZA PRODUCTS SC-916 Crown Cone Remover. It's a dedicated tool for removing the crown race (lower headset cup) from the fork column. It supports a wide range of column sizes, from 1 inch to 1.5 inches (Ø25.4〜38.1mm). By sliding the steel body in, you can safely and efficiently disassemble and maintain your headset parts. There is some dirt on the back of the tool from storage, but it has only been used a few times, so the overall condition is good. Thank you.