PE Bubble Interior Film is a type of plastic packaging material that is widely used in a variety of applications. It is made by sandwiching a layer of air between two layers of polyethylene (PE) material, resulting in a bubble-like texture. The bubble wrap tape is used in cold winter to stick on windows to maintain indoor temperature unaffected by the cold outside air. It can be reused by tearing it off when not in use. It is lightweight and does not affect the brightness.