Key Specifications/Special Features: " ESD shielding bubble envelope is made of PE conductive film (or PE conductive grid film, EPE, PE bubble) and shielding film " Can be used for packing all kinds of electronic products " Can release electric charge accumulated in loaded goods so as to avoid static generated during process of delivery " Bubble can protect goods from damage during delivery course " Extra tough bubble inside protects contents from damage during delivery " Superior cushioning and surface protection " Quake push and water-resistant " Light, easy and safe to use " Perfect to replace with wooden box and paper box for packing