Optibelt VB Classical V- Belts are S=C PLUS and are therefore unmeasured and can be used in sets, no matching needed, no time spent in putting together belt sets. This accuracy is unmatched in the industry.
Optibelt VB S=C Plus C section C/22, 22mm (Across the top of the V)
Classical V-belts, DIN 2215
C132 = 132 Inches Inside length or 3350mm. 3408Ld = Datum Length, so if you measure the belt in the middle all the way around.