ACRZ Press-Fit BB Bottom Bracket Remover & Installation Tool This tool allows for the installation and removal of various press-fit BB types, including BB86, BB90, BB30, and BB386. All necessary tools are included. An instruction sheet with a QR code for a video site is included. There are also many videos available online demonstrating its use, so you should be able to use it without any problems. I have only used this tool once to remove and install a BB86 bottom bracket, so there are some minor scratches associated with that use. Please refrain from purchasing if you are concerned about this.