This necklace has no clasp, it goes on over the head. The inside measurement of the necklace is about 27 long. The measurement of one pendant (jaclaw) is 4 & 1/4" tall by 11/16" wide at the widest.There are no identifying marks on this piece. I guarantee that this is as described. The item "NATIVE AMERICAN TURQUOISE Beads SHELL HEISHI Ladys LONG NECKLACE with JACLAW" is in sale since Wednesday, January 3, 2018. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Necklaces & Pendants". The seller is "siridatar" and is located in Albuquerque, New Mexico. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia, New Zealand.