... :paper with elastic bands 3.Thickness of cardboard :350/550/700GSM Paper cardboard file box 1.Nontoxic material 2.MOQ: ... ,paper fileWe are professional produce various File folders,like presentation folder,pocket folder,Manila file folders,Hanging file folders, ... produce various File folders,like Hanging folders,expanding files ,presentation folder,clip file folder,file holder,pocket folder,Manila file ...