The 3M PPS 2.0 Spray Gun Cups are designed for use with paint guns and are sized at 13.5 ounces (Midi). Specifically designed by 3M, these spray gun cups offer a convenient and efficient way to dispense paint for various industrial and business applications. With the PPS 2.0 technology, these cups provide a reliable and consistent spray pattern, making them a valuable tool for professionals in the field.