This is a 1/4" wide by 1/8" thick solid Copper with a smooth finish. Solid Copper Cuff Bracelet made in the USA with American Produced Copper. I make them by hand to order. You have them personalized on the inside or the outside. Just shoot me a message. Please make sure to measure your wrists at the cuff line where the hand meets the arm all the way around to get an accurate fit the first time. See the chart in the pictures for sizing.