This is a A-AX25 Cogged Classical V-Belt (1/2" X 27") PN: AX25Main Description As Following : A-AX25 Cogged Classical V-Belt (1/2" X 27") P.N: AX25 1/2 X 27 A Section Cogged Polyester CordColor: BlackDepth: 5/16"Length: 27Material: Polyester CordOC Length: 1/2" X 27"Thickness: 0.3125Top Width: 1/2"Type: A Section CoggedWidth: 1/2 Found in Section & Models : Industrial Belts > AX-Section Cogged Belt, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : 1/2" x 27" A Section Cogged Polyester Cord Color: Black Depth: 5/16" Length: 27" Material: Polyester Cord OC Length: 1/2" X 27" Thickness: 0.3125" Top Width: 1/2" Type: A Section Cogged Width: 1/2"