A countertop concrete washbasin with a classic square shape. It has a unique external texture and makes each sink original. The timeless use of concrete in the bathroom gives any space authenticity and strength. The round shapes of the sink combine with other materials and modern trends in interior design. The surface of each sink is thoroughly protected against the absorption of liquids. Thanks to several layers of high-quality impregnation, it is resistant not only to water but even coffee or red wine. The surface of the washbasins is smooth but still shows a porous roughness to make a strong impression on concrete, which has natural features and guarantees its original appearance.