Super heavyweight holder has a unique closure style that makes it ideal to store work orders or operator manuals in rough industrial environments. Top loading holder features a real zipper that provides a durable seal, securing documents inside and adding an extra layer of protection. Stitched edging extends the longevity of the holder, especially in heavy-use settings. Front and back covers are made up of clear super heavyweight vinyl material keeping pages visible, while stored in the holder. 9 x 12 size. Black. 15/BX.