Fully sprung equalized trucks. Mounts with a #2 or 2-56 screw, sold separately Truck features: *Self centering action - trucks self align themselves parallel with the car for easier placement on track *Code 88 (.088) 33′ smooth back wheels * Accurate markings *Incredible detail true to prototype *Non-magnetic metal wheels *Highly flexible sprung trucks *Metal sideframes and fully sprung bolster *Smooth-tracking free-rolling contoured insulated axles *RP-25 free rolling wheels