Hey guys, I received some project kics wide tread spacers as a gift and need help finding out what size they are (20mm, 25mm, 30mm). The labels are in japanese. My brother bought them off his friend who has a STi and both of the boxes' labels indicate this:

 

5130W3 is the part number.

Those are 30mm 12X1.25mm

http://www.upgrademotoring.com/wheels/kics_spacer.htm

 

thanks man

 

You could also take a ruler and measure them.