I purchased this at a Craft Exhibit in New York Citys Greenwich Village about 25 years ago (probably many more years than that, lol) - truly a unique piece - large hematite in front with smaller ones mounted on both sides - because of its unique shape, I won't give you the length but it fits me well and I can wear either a 16 or 18 inch necklace - it has a secure lobster claw and a rolo chain beyond the brass pieces - please see my other auctions as I will gladly combine auctions to save you money on postage - please, just notify me and wait for my invoice to pay