This is the Big Bore Shock Springs: 65mm Light Red (35GF/mm) (2pcs) For the Team Durango 1/10 Electric Off Road Buggies and Short Course Truck FEATURES: Steel construction Black in color with red conpression rating INCLUDES: Two shock springs COMMENTS: This is an optional part for DEX410 1/10 Electric 4WD Off Road Buggy DEX410R 1/10 Electric 4WD Off Road Buggy DESC410R 1/10 Electric 4WD Short Course Truck DEX210 1/10 Electric 2WD Off Road Buggy DEX410v3 1/10 Electric 4WD Off Road Buggy DEX410Rv3 1/10 Electric 4WD Off Road Buggy 5/14/12 pjw ir/jxs