This metal sample is the exact same material that your sink and metal accessories will be made of. We use the highest-quality domestic metals on the market. Our bronze is much harder than what is used for most imported sinks and in its raw form has a coloration similar to 24k gold. We naturally burnish the inside of your sink to create a low maintenance finish, similar to our weathered copper sinks. Please call to discuss before ordering! Exact sample sizes may vary.