Rival Tech - stretch wrap or stretch film is a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound. It's different with shrink film they don't need heat. It can using by hands,Website:http://www.rival-tech-bj.com, but most time machine is better choose, more fast and more tight, to protect goods. Our stretch film is from 5 layer extruder. new material Increase product Tear Resistance Suitable for high speed devices. Also reduced the thickness, cost savings.