Introduction These high quality 10″ x 13″ 35pt 100% recycled chipboard covers are an ideal solution to give rigidity to your documents, reports, presentations, and proposals. These 35pt 10″ x 13″ chipboard covers are often used on the back of notebooks and can be wrapped, painted, die cut, stamped, or punched for virtually any project. We do recommend ordering these 10″ x 13″ 35pt recycled chipboard covers pre-punched (see drop-down menu above) as they can take a toll on smaller binding punches. The product number for the 35pt 10″ x 13″ covers is MYCB10X13-35.All of our chipboard is made from recycled materials, so you might notice slight color variationsfrom gray to brown, with speckles or unique markings. That natural look isn’t a flawit’s proof that you’re making a more sustainable choice. Every sheet is a little different, and that’s part of the charm.