C420 1/2" x 1/4" Roller Drive Chain for Ride-on Mower lawn mower MEASUREMENTS width in mm: 6.40 Width in inches: 1/4 Length in m: 3.00 Chain pitch in mm: 12.70 Chain pitch in inches: 1/2 Chain type according to US: C420 Diameter of the drive rollers in mm: 7.60 PART NUMBER: 22-728 ORIGINAL CODE: CZ