Index dividers offer write-on laminated tabs with 50 percent more writing area than traditional indexes. Special Matte-finish Mylar on tabs can be written on and, with most pens, easily erased. Three-hole punched design is Mylar-reinforced and fits standard-size, three-ring binders. Dividers are made of 90 lb. white stock.. Post consumer recycled content: 50%. Recycled content: 100%. Made in USA.