If you want to improve the beauty and elegance of your bathroom, you can hang black oval bathroom mirrors on the wall. If you are looking for a best or appropriate mirror, you should first consider the available space in your bathroom. The most popular types of mirrors used in bathrooms include large square mirrors, traditional mirrors and oval mirrors. First of all measure the size of mirror that you want to purchase for your home. You can use a newspaper of the same size as template to hang on bathroom wall. If the size is correct you can buy black oval bathroom mirrors of this size.