Engine Turn Film Vinyl Sheet Roll Simple Curve Wrap - 24" Engine Turn Rwrap simple curve Engine Turn film is an adhesive backed polyester film. This is a 24" wide sheet of adhesive backed film designed for simple curves. Universal trim to fit sheet can customize most flat surfaces. Customize just about anything that has a simple flat non-porous surface. 100 Percent Satisfaction Guarantee, 5 year warranty, Installer Friendly Film.