Tarma's Black skull has a set of cog teeth ready to go on your next big adventure. Pendant is mounted with a keeper bead to keep the pendant in front and the closure hardware in back. 3mm recycled polycord is durable, lightweight and dries quickly. Can be worn in the shower or swimming and won't feel clammy or wet like cotton, suede or nylon. Button toggle closure lets you easily adjust to the length you like. Just tie a new knot at the desired length and trim off excess cord.