I wove this chainmaille choker by hand. Each section of chainmaille and each large jumpring connecting them has a spike hagning from them. Don't worry, spikes are not sharp and will not poke you. Made using silver and pink 18g anodized aluminum. Spikes are 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.