I sell car parts and sometimes I sell car bumpers bars. They are hard steel beams and won't get damaged without a box. I generally put them in a box but am out currently and was curious if anyone knows the rules on items like that. I work in the auto industry and often get mufflers, tires, or other random larger weird items that don't box well. I know it can be done but it's hard to find the rules on ups or fedex regarding it. Anyone have thoughts or experience? I'd like to just slap a label on it and let it go.