Avery Dennison® DOL Speciality Series are premium-quality films designed for use as protective overlaminate films for digitally printed images that require special attention. Avery Dennison DOL 4000 is an ultra-clear cast film that offers high transparency and excellent see-through properties. They are especially recommended for Perforated Window Film overlaminating, even for slightly curved windows DOL 4400 UV is specially designed for digital UV-printed vinyl films with rigid UV-curing inks.