Made in Germany. They are composed of up to 80% natural quartz sand, the hardest constituent of granite. The non-porous surface feels like stone, is extremely durable and easy to clean. Color/dimensions: Alpina white apron kitchen sink is a 33” x 22” farmhouse model that fits in a 33” cabinet Granite composite material: quiet, non-porous, liquid repelling, extremely durable and heat resistant to 535 degrees Installation: apron farmhouse sink can be installed under the counter In style:the AR granite composite farmhouse single bowl kitchen sink in Alpina offers contemporary styling with tight radii which gives maximum space for dishes, pots and pans Extra bowl depth: extra deep 9.5” bowl gives you plenty of space in the sink and helps avoid water splashing on the countertop Maximum utility: the tight radii, off-set drain placement and 9.5” depth offers the ultimate in space and utility