The Eden Bath Clear Round Flat Bottom Embossed Glass Vessel Sink features a round shape with ripple textured bowl and a swirl pattern down the sides. The bowl of the sink is smooth, but the pattern can be felt on the exterior. Each clear glass vessel sink is made of high quality tempered glass, which does create a faint greenish blue coloration. We recommend that you also purchase a drain with your glass bathroom sink bowl in the same finish of your faucet. As this sink has a relatively flat bottom, it can be installed with or without a mounting ring. PLEASE NOTE: the bottom of this sink is relatively flat compared to round bowl vessel sinks, but it does not sit completely flat on a counter. It has a small slope toward the drain on the outside, which almost gives the sink the appearance of floating on a vanity.