1. General design - The specially designed clips will fit nearly all round pots, pans and bowls big and small (yes, even the ones with a lip). 2. Save space- Small, compact strainer that is easy to use and store in a quarter the size of the traditional colander. Great when working with limited counter space. 3. Safety and durability- Completely BPA free, dishwasher safe. Made from top-quality silicone it has the durability to last for many years. Will withstand straining of heavier foods like potatoes.