I needed a little bit of extra length on this toggle clasp necklace, so I went searching for extenders. This one was the right size and looked like the highest quality and best materials. It's just what I was looking for! I love that I can choose multiple length options, for an extra 1.5 or 3 inches. I double the chain back on itself to avoid the extra dangling loose. It maybe looks a little funny from the back but not a big deal.