try this link, best one i've seen yet and for the price. can't beat it. seen cheaper made ones for 45$ this one is on sale for 29.95 http://www.newyorkbarbells.com/im-5621.html
That's a good one. Look for one like this with stitching... not one held together with rivets. Also, note the length and thickness of chain. Some of the chains are really thin... and way too short.