It has an easy release frame design that allows you to remove the paint-filled roller cover without getting paint all over your hands. All you need to do is squeeze the lever and the roller cover will get released, saving time and avoiding a mess. There are 3 easy steps to use this product: load, paint, and release. It also has a plastic roller cage that prevents roller slippage. You can use this product with latex paints.It has an easy release frame for mess free cover removal. Along with that, it has a soft, ergonomic handle that prevents fatigue.