4x10x3 Open bearing (MR104) by Avid Racing Concepts is a high quality steel/chrome bearing. Our bearings have been tested and proven by many racers. Check your manual for the correct size for your vehicle if you are not certain.
METRIC: 4mm (Inner) x 10mm (Outer) x 3mm (Width)
STANDARD: 0.15748" (Inner) x 0.3937" (Outer) x 0.11811" (Width)