These A4 2-ring ('O' mechanisn) binders are made from 100% biodegradable polypropylene sheet material and also feature a label on the spine for easy indexing. The new ECO range of PP Document Management has been designed to give consumers an environmentally-friendly choice at no extra cost. Carefully-selected additives enable Rapesco ECO products to biodegrade safely without causing harm to the environment. These unique biodegradable materials are 100% recyclable and also contain some recycled materials in the manufacturing process. During the biodegradation process; the products do not emit methane or any chemicals harmful to the soil; even in deep landfill. Pack of 10 assorted coloured ring binders.