Dual-Sided Blade - curved for skillets and bowls, straight for saucepans and casseroles. Strike Zone - silicone cushion protects cookware edge and bowl rims. Rim Swipe - cleanly swipes food from the rims of mixing bowls and cookware. Grip Rings - for comfortable control and quick orientation in the grip. Elliptical Shape - provides comfortable slip-free grip. Push/Pull Design - increases control and offers secure grip. Heat resistant dishwasher safe premium silicone removable heads.