This piece is constructed using the 3-1 Half Persian weave and we make ours with anodized aluminum rings. The aluminum contains no nickel, lead or zinc and are hypoallergenic. The standard length of our anklets is 10" but if you need it at a different length to fit properly just leave me a note and we will make it happen. If you order a piece trimmed in a secondary color please leave me a note in the "special instructions to seller" telling with the other colors you would like.