Calphalon Unison Nonstick 8-inch and 10-inch Omelette Combo with Slide Nonstick. The sloped sides are designed for easy tossing and rolling. Cook with confidence no matter what you have on the menu. Experiment with a new dish or cook your tried-and-true favorites with ease. The revolutionary Calphalon Unison Slide Nonstick surface releases foods effortlessly, making even the most demanding culinary creations simple to prepare.