RM Brass Sink Cock to your bathroom decor to elevate its appeal. As far as bathrooms are concerned, the look and feel largely depends on fittings like taps and faucets. RM is known for its robust designs and exemplary finish.which you can add to your bathroom to decor. Made of brass, this.RM taps is extremely sturdy and resistant. To keep it clean and sparkly, you may use a mild bathroom cleaner or floor cleansing base periodically. You may also use a chrome polish once in a while to maintain the chrome. The 5-year manufacturer's warranty makes it worth the buy.