031799 - Pro Series II™ 3" OD Body Tube
This looks like a regular tube with a last wrapping of a white cover. (You wouldn't HAVE to paint tube, however I would still use a sealer.) Tube feels heavy, and solid... no concerns of crushing or denting tube. These are very sturdy! A great product if you're building BIG!!!
These were the measurements I got:
ID : 2.93 in. (7.45 cm)
OD : 3 in. (7.62 cm)
W : (0.95 mm to 0.97 mm)
Length: 21.5 in. (54.61 cm)
Weight : 3.26 oz.