This is the Big Bore Spring Set: HARD 45mm Length (8 Pairs) For the Team Durango 1/10 Electric 4WD Off Road Buggies and Short Course Truck FEATURES: Steel construction INCLUDES: Eight pairs of springs, one pair each of Green Orange Dark Red Blue Yellow Red Purple Brown 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 (TDRC0130) DEX410v3 1/10 Electric 4WD Off Road Buggy (TDRC0120) DEX410Rv3 1/10 Electric 4WD Off Road Buggy 5/18/12 pjw ir/jxs