Made from durable recycled aluminum with 60 percent post-consumer waste, Saunders 1 inch Ring Binder (00603) features a top quality clip system flat spine with heavy duty hinges. Our?durable Tuffbinder is the ultimate ring binder that will continue to perform for years to come. Use for controlled environments, shop manuals, construction sites; can withstand abuse and yet still keep protecting your papers. Perfect when needing to archive important documents.These aluminum binders are ultra-strong, damage-resistant, and stylish.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }