Drum: 381mm
Inner arc: 177.1/171.2mm
Width: 101.6mm
Thinkness: 17.8/11.0-18.7/15.5

It fits for ford gms iveco volkswagem rockwell.
Specifications:
1. Noiseless, 100% asbestos free and excellent finishing.
2. Longlife time in toghest road condition.
3. Exceptional stopping power.
4. Lower dust level.
5. Works quietly.