Brake pad wear gauges, 2mm to 12mm

A set of six brake pad wear indicators in 2mm steps, ranging from 2mm to 12mm.. They're 90-degree offset, so it should be fairly easy to gauge how much brake pad is remaining without removing your wheel. There's a MMF version with two red, two yellow, and two green, and there's a single color version. If you want you could put a pause at layer 29 to change colors for the text labels.