This is a A-520J16 Micro-Rib V-Belt (52.0") PN: 520J16Main Description As Following : A-520J16 Micro-Rib V-Belt (52.0") P.N: 520J16 16 Rib X 52 J Micro Rib Polyester CordColor: BlackLength: 52Material: Polyester CordMaximum Ribs: 220Metric Code: 16PJ1321Number Of Ribs: 16Pitch Length: 52.0"Thickness: 0.16Type: J Micro RibWidth: 16 Rib Crossed From: 16PJ1321 A & I METRIC BELTS Found in Section & Models : Industrial Belts > J-Poly Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada