The semi-circular Mesa shelf from Umbra attaches to a corner of the tub with a strong suction cup (included) and provides handy storage for bath essentials. Constructed of easy-to-clean, translucent white plastic, it's ridged surface and built-in soap dish are self-draining. Two indentations flanking the soap dish conveniently and safely hold razors. Designed by Mauricio Affonso and Alan Wisniewski, this shelf measures 11-3/4 by 15 by 1-Inch. Umbra is the worldwide leader in casual, contemporary and affordable design for the home.