The main body constructed of premium solid brass, the sturdy brass construction can prevent corrosion and make the product more durable. We use high quality solid brass to produce our tub faucets so they are heavier than other zinc alloy faucets, you can feel the good quality after you receive it. The great design can make our freestanding tub filler more stable than other's and will not wobble like other's when the tub filler is turnning on.