This set of colored scouring pads is a need for the kitchen and is designed to handle challenging messes. The nylon material is safe enough to use on non-stick surfaces and strong enough to tackle even the toughest stains. Excellent for other household uses as well, including a DIY soap scum scrubber, aquarium filter media, washer lint trap, and more! They have a diameter of about 2 1/2 inch.