3L420 V-Belt, Outside Length 42 in/ STRENGTHENING FEATURE: SYNTHETIC CORD PERFORMANCE TYPE: STANDARD CAPACITY CROSS-SECTIONAL SIZE: 3L NOMINAL EFFECTIVE OUTSIDE LENGTH: 42.000 INCHES MATERIAL: FIBER BODY AND RUBBER AND FIBER SYNTHETIC AND RUBBER CHLOROPRENE CLASS CR AND RUBBER SYNTHETIC STYLE DESIGNATOR: A1 PLAIN