Environmentally friendly type (POF) 5-layer co-extruded polyolefin shrink film. Widely used in the packaging machine. Polyolefin POF Heat Shrink Wrap Film is now the most widely used shrink packaging materials due to being cost effective, strong, shape conforming and tamper evident. it is clear, elastic and has a smooth texture. it is composed of Polypropylene (PP) and Polyethylene (PE) which are non-toxic and non-smelly.