This is a A-A19.5 Classical V-Belt (1/2" X 21.5") PN: A19.5Main Description As Following : A-A19.5 Classical V-Belt (1/2" X 21.5") P.N: A19.5 1/2 X 21.5 A -Section Polyester CordColor: BlackLength: 21.5Material: Polyester CordThickness: .315Type: A-SectionWidth: 1/2 Replaces: A-4L215 IND. 4L SECTION BELT Found in Section & Models : Industrial Belts > A-Section Wrapped Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 1/2" x 21.5" A Section Polyester Cord Color: Black Length: 21.5" Material: Polyester Cord Type: A-Section Width: 1/2"