This is a A-570K6 Micro-Rib V-Belt (57") PN: 570K6Main Description As Following : A-570K6 Micro-Rib V-Belt (57") P.N: 570K6 6 Rib X 57 K Micro Rib Polyester CordColor: BlackLength: 57Material: Polyester CordMetric Code: 6PK1448Number Of Ribs: 6Outside Length: 57.63"Pitch Length: 57"Thickness: 0.18Type: K Micro RibWidth: 6 Rib Crossed From: K060570 GATES , 4060570 GOODYEAR , 5060570 DAYCO , 6PK1447 A & I METRIC BELTS , 6PK1448 A & I METRIC BELTS Found in Section & Models : Industrial Belts > K-Poly Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 6 Rib X 57" K Micro Rib Polyester Cord Color: Black Length: 57" Material: Polyester Cord Metric Code: 6PK1448 Number Of Ribs: 6 Outside Length: 57.63" Pitch Length: 57" Thickness: 0.18" Type: K Micro Rib Width: 6 Rib