The paint is baked onto the wheelsets for more durability with only the treads being exposed with the nickel finish.
PLEASE NOTE: the paint finish is durable but not indestructible.
Moloco's PRE-PAINTED 33-inch SEMI-SCALE 0.088" width tread wheelsets with back contour are insulated and are nickel-plated. They are precision CNC-machined brass wheelsets that can be used universally with our trucks and others. The axle length is 1.005". Use them as replacements to get a very prototypical tread and contour in all types of cars.