Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: is this a one piece bar? I know some ship as 3
Document: Good size and strong enough for the weights I use (deadlifting max around 220# with this bar). The one collar has limited spin where it locks up after about 1.5 rotations or so, which adds extra pressure to your forearms and such when trying olympic lifts. Oddly, the other collar still spins just fine. Overall, great space saver, hard to beat the price, but at the same time not the best quality.
No complaints. The bar is 6 feet long, but is 50 3/4 inches between the collars (advertised as 52 inches), so it will fit any olympic sized bench, or power cage just fine. The only "draw back" then would be that you can't put on so many plates, and then the collar. But it still fits at least 4 of the 45 plates on each side, plus a spring type collar with no problem.
The bar is very sturdy and it feels solid. I use it for bench-press, dead-lifts, and power-lifts and it feels good.
This is truly an exceptional value. I was a bit skeptical about condition and shipping time, given the price, but this bar arrived VERY quickly and in wonderful condition. No jagged sections, nothing half colored or crappily finished. It was very consistent in its black, along the bar, and the ends are very clean and fine. It comes fully assembled, not needing to be put together with pins in the middle (which always end up wearing out).
The bar has ample capacity for anything I'd ever lift, and being 6' long it's fairly maneuverable for when I want to do walking lunges across my living room floor. The finish is outstanding...no burrs or irregularities to tear up your hands, and the chrome sleeves are machined well. Plates slide on and off easily, and the cheap $10 collars I got at a local store keep everything nice and tight. I'm glad I went with this product.
It holds some serious weight, does not bow or bend. Very high quality for the asking price. I will certainly look to Ader Sporting Goods for future weight lifting needs.
You could probably slip on a 5th plate, but then you may be cutting it close for room, plus the bar has a 500 lb limit. Its perfect for most guys who work out at home, but have limited space.
my living room is basically a gym. being shorter than my standard bars is helpful. Grip could be a little stiffer. Just a personal preference really.
Answer: yes