Traxxas X-Maxx TBR Suspension Arm Skids Front & Rear from T-Bone Racing - 62155 Lifetime Warranty from T-Bone Racing Fits on the Traxxas X-Maxx Very Sturdy A-Arm Skid Plates made out of Nylon and Delrin (Acetal) 100% Made in the USA Designed to protect the of your car's A-Arms and Driveshafts from impacts and debris.