Here are some photos of the pins I received. I left the knobs on the end of the first set that I cut, and with bumper mounts installed it is impossible for them to come out on their own. Like Lito said the 1/8th inch are what you need. I really like the chrome pins because they are very smooth, which helps the arms move easily. I have had to remove way too many bent pins due to them getting bent in just simple bumps. These are much harder and they do not bend easily like the Ti pins do. They really are great.