Toughen up your WLtoys 144001 RC car with this aluminum swing arm set! It includes both front and rear swing arms (A-arms), all made from durable, lightweight aluminum. Replacing the stock plastic arms with these metal ones adds serious strength and helps prevent breakage during jumps, crashes, or rough bashing. They also can improve handling stability. The black anodized finish looks cool and resists corrosion. Fits the 1/14 scale WLtoys 144001 model (and likely other similar WLtoys 1/14 and 1/12 models – but double-check compatibility). Installation is pretty straightforward if you're familiar with taking apart your RC's suspension. A simple and effective upgrade that makes your buggy more durable and ready for harder driving. Package includes 2 front swing arm sets and 2 rear swing arm sets. Get more run time and less downtime!