Made of heavy-guage perforated steel with a rock-hard, chip-resistant, dishwasher-safe porcelain enamel finish, these grids are a perfect way to grill shrimp, scallops, mushrooms, vegetables, any food small enough to fall through the grate on your grill. They're also well-suited for cooking delicate fish. The large handles are easy to grip, so you can take grilled food directly to the table on the grid. The small grid measures 14.25" x 9.75" , the large grid is 17.25" x 11.75" ; both feature a 2" lip on all four sides to keep food in its place.