ALL METAL CONSTRUCTION - The bathtub & shower trim system resists fingerprints and water spots for a cleaner-looking bathroom and less time cleaning it. Fabricated with HEAVY DUTY Die-Cast Zinc and Solid Brass, ensuring durability and longevity. ISO 9001 and ISO 14001 certified manufacturers. Therefore, this faucet bathtub trim set is the perfect solution for your bathroom. SURFACE FINISH - SENTO faucet bathtub trim set is hand-polished with every detail. High-quality plating process passing with 24hrs salt spray testing. The faucet bathtub set was designed out of solid metal that is finished in beautiful matching color. This will allow the faucet bathtub trim set to stand the test of time.