Our Single Stretch Helm anklets are constructed using a modified helm weave and anodized aluminum and so contain no lead or nickel and EDPM rubber rings that contain no latex. They are hypoallergenic. They can be ordered in a wide variety of colors or you can contact us to do custom colors. Since they stretch they do not require any other findings and so are easy to take on and off. The standard length for these pieces if 9", if you need a different length just let us know.