The Bison Charcoal Grill head has been re-engineered for greater performance. The new vent system and gasket features allows for greater temperature control with the ability to regulate the oxygen flow into the firebox. Now you can set up the Bull Bison for slow and low BBQ, or crank it up to get that steak house quality sear on your steaks and chops.The Bison Built-In is a 76cm Stainless Steel Charcoal Barbecue Grill.