Nice brown stone or brown shell bolo! I believe it is a large piece of brown lip shell? What ever it is, it's sure is nice! Mesmerizing and almost black in appearance with a line of light brown running down one side (see picture). Set in a smooth bezel wrapped with twisted wire and two feathers at the top. The bolo pendant measures 2 1/8" by 1 3/4" across. Attached to a braided dark brown leather cord with two silver slides and beaded end tips. The cord measures 43" long to include the 2 1/4" long sterling silver end tips. The silver slides measure 3/4" long and can be slid up and down the cord as desired. It also comes attached to a newer patented spring loaded speed button clasp. The complete bolo weighs 58.6 grams (2.07 ounces) and is stamped STERLING on the pendant and PAT. NO. 3675277 on the push button clasp.$139.95