I wove this chainmaille choker by hand. Each patch of chainmaille, and each of the large jumprings connecting them have a spike hanging down. Don't worry, spikes are not sharp and will not poke you. Choker is black and gold anodized aluminum. It is lightweight and aluminum does not tarnish. Spikes are plated acrylic. Lobster clasp. There are 2 choker lengths to choose from in the options list. The 13 inches + 5 inch extender (letting you adjust it between 13-18 inches) fits most adults, but there is a longer option available for those who need it.