Our Stretch Acadia anklets are constructed using the a variation of the box weave and anodized aluminum rings that 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. 9" is the standard length for these pieces but if you need a different length just let us know.