Made of elastic plastic, the 72 1mm-wide vertical slim-slots on around the surface of the Colander efficiently drain the water during rice washing. The bowl and colander are stackable, making the task of straining fuss-free. The elastic yet highly heat resistant material is a product of ingenious engineering. Although specifically designed for rice rinsing, its flexible and bendable body can also be used as a strainer for salad and other food. This multi-purpose Colander and Bowl set is an essential tool for any modern kitchen.