The BLANCO PERFORMA 60/40 DOUBLE BOWL UNDERMOUNT KITCHEN SINK with LOW DIVIDE features a 60/40 bowl design, offering plenty of room for rinsing, washing, soaking, spraying and straining operations. The 60/40 bowl split allows for washing larger items while still leaving the smaller bowl open. This kitchen sink is made of SILGRANIT, a patented, certified granite composite material that is engineered to take on the toughest kitchen tasks. SILGRANIT is heat, scratch, stain, chip and impact resistant, making it stronger and more durable than other sink materials. It will not blister, burn, melt, or discolor from hot pots, pans or baking sheets straight from the oven. Beautiful and highly functional with its non-porous, hygienic surface, it pushes away liquids and residue resulting in a low maintenance, easy to clean, long-lasting material.The PERFORMA double bowl kitchen sink easily conquers the demands of everyday life. Patented SILGRANIT material is heat, scratch, stain, chip and impact resistant Hygienic+Plus Surface Technology acts as a protective shield against liquids and dirt Convenient low divide makes it easier to handle large pots and baking sheets while dividing the sink into cleaning and prepping bowls Undermount installation makes for easy clean-up without dirt or grime building up around the rim Basket strainer and installation clips sold separately Optional accessories include large grid (item #226828), small grid (item #226830), cutting board (item #227346) and drain cover (item #517666) BLANCO is the only granite composite sink manufacturer that meets the composite stone IAPMO standards