the ruler indicates the chain is 1/8th inch width. while the chain fits into the 1/8th inch slot it is SMALLER.  also this chain was sent all knotted up. it took me a long time to unravel this chain.  it's not sturdy.  it is delicate.  my lesson learned: buy from a jewelry store where you can see and touch the chain.  too risky buying from online.  didn't get what i needed/expected.