Chips vary slightly in size. I've found that although the silver "rounds" size works for most, you do need "Silver Eagle" size holders for some chips. For example, older Christy & Jones chips, especially those with little wear, are among the larger chips. I'd order some of each of these two sizes, then a third size if you have any "oversized" bacarrat chips. DO NOT order any silver dollar sizes; they don't fit.
steve