This is a A-604-4400 Tube, 2 1/2" Round (.120 Wall) PN: 604-4400Main Description As Following : A-604-4400 Tube, 2 1/2" Round (.120 Wall) PN: 604-4400 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 44 Series, Weasler Domestic: 55 Series, Driveline > Shafting & Tubing, Weasler Domestic: 44 Series, Weasler Domestic: 55 Series Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Length: 3' Tube Size: 2-1/2" (.120 Wall)