Bath tubs are a fixture that is placed or installed in the bathroom. Most modern bathtub made of acrylic or glass fiber, but some are made of porcelain-coated steel or wood. Old-fashioned tub in the western world is usually made of galvanized steel or iron (cast iron) are coated with porcelain.
Until recently most of the bath is made in the form of more or less rectangular, but with the advent of acrylic forming technique, then the variation is more multi-faceted. The tub is usually white, but other colors are now also prevalent