This necklace is made using the helm chain weave and is approximately 17 1/2" in length and can be adjusted to go shorter. If you wish for it to be lengthened, please note me upon ordering. It is made from green and silver plated copper wire and is very sturdy. It also features a pewter rabbit charm. I have other colors available, so if you are interested, please message me for details. Clasp is a claw clasp in the back.