When I made these I had no idea the response we got was coming. These are Genuine Snowflake Obsidian Tube Beads held together by a 1.2mm 14k Cable Chain and 14k Spike. They measure in at 42mm long and are meant to make you stop. These aren’t for the faint of heart. They are light weight and comfortable for that well established hole. Best on a Seam Ring for stability. They are all slightly different obviously in stone but also in the length of the chain based off the size of the bead.