Bindingcovers of cardboard or plastic. With a cardboard or plastic front cover, you finish your documents neat and protect your valuable documents. The colored plastic protective sheets are made of PVC or more environmentally-friendly polypropylene or PET. These bindingcovers are packed per 100 pieces. The covers are available in A4 and A3 in thicknesses ranging from 0.15 to 0.30 mm.