Our own brand of aluminum collars, lightweight, but very strong. Rubber lined for extra good grip on your bar.
The collars have a layer of rubber inside, making them grip well, even when deadlifting.
Really nice bar that I've been enjoying using. Definitely worth the price. Maybe put a bit more padding on the ends during shipping though. Ups was rather rough with it and the corners got a bit beat up. Not enough to subtract a star or anything.