I am unable to confirm the material as this was not made by me. It appears to be brass with an antique finish. It looks like it is made of brass. Please refer to the scale in the images for the size. The background grid is 1cm x 1cm. More conchos are on sale here → #concho1942el For wallets (leather wallets), bags, saddlebags, tool bags, leather jackets, leather vests, belts, hats, caps, etc. Easy customization, just make a hole with an awl and attach with the included screws from the back. The image will change dramatically. Nickel versions of the same design are also available. Selling at a low price. Further discounts for bulk purchases. No discounts for single item purchases.