... 3. toughness is good 4. easy to design much prodouct. polypropylene (pp) plastic sheets , we can call it " design assistant ." because we ... -box...ect.it's let our life beautiful and convenient :)material : ppthinckness : 0.125-4.0mm : 0.0049''-0.158'' :12c ... , acid-proof and nontoxic5 Light weight, save material, can be recycled use, good material to replace paper bags6 Antistatic, can be used ...