Enjoy the ease, speed, and safety of induction cooking with SUMMIT's SINC line of energy efficient induction cooktops. The SINC424220 is a four zone built-in cooktop featuring a genuine Ceran™ black glass surface. It uses electromagnetic heat generated by your pot or pan to cook in half the time, using half the energy of conventional ranges. Eight variable touch power settings make heating precise and easy. Since the smooth surface has no holes or grates, clean-up is simple: all you need is a gentle wipe with a damp cloth. Designed for the highest quality cooking experience, the SINC424220 is fully equipped for safety. The temperature of the surface does not get nearly as hot as traditional gas or electric elements and there are no open flames or released gasses. Safety features include automatic safety switch-off and a residual heat indicator. Each purchase of an SINC424220 includes a complimentary set of SUMMIT Induction Cookware. This 7-piece collection includes three pots with heat-resistant glass lids and one 9 1/2 inch skillet. All are constructed with a triple layer bottom, with an aluminum core layered between stainless steel to provide cooking contents with even heat distribution. Safe for use on induction, gas, and electric heat surfaces as well as use in dishwashers and ovens. SUMMIT's induction cooktops bring the superior performance of upscale restaurant cooking into your own home, with energy savings and gourmet style. NOTE: Because induction cooking requires magnetic energy, your cookware must be made of cast iron, steel, or magnetic stainless steel. Materials that will not work include aluminum, copper, and non-magnetic stainless steel. Many of your current pots and pans may already be induction-friendly. In order to determine if your cookware will work on an induction surface, simply place a magnet (such as one hanging on your refrigerator) on the bottom of the pan. If the magnet sticks, the pan will cook.