High quality polypropylene is a light weight, yet extremely durable material. Polypropylene is resistance to oil, scuff marks, extreme heat, bitter cold and excessive wear and tear.
The one-piece polypropylene binder make this a more durable and yet less expensive alternative.
Polypropylene binders are great for reference and training manual that are used frequently in workshop area or in the field. Available in assortment of colors, thickness and textures.