The Body Solid Olympic Super Power Bar is an excellent barbell. It is super strong and is very rigid. There is a 5" inch wide centre diamond knurling which is useful for squatting. It has a chrome finish which helps prevent rust. The bar is marked with two powerlifting rings that are 34" inches apart. The sleeves are 15" inches in length each which lets you really load up the bar with plates. It contains bushing bearings with a brass ring. The bar is extremely rigid even when squatting 150kg it does not bend marginally at all. The only reason I gave 4 stars instead of 5 stars is because I found the knurling to be too shallow. The knurling is not aggressive or sharp enough for heavy deadlifts or for performing any other type of lifting off the ground. The bar is therefore hard to keep a grip of when deadlifting or Olympic lifting, but it is perfect for squatting or benching. I would prefer if the grip was deeper and more aggressive. But in all this is an excellent bar, which is extremely solid and it is a great addition to any gym.