NATIONAL Brand Filler Paper, Ruled 5/16, Mylar Reinforced, 11 x 8.5", 100 Sheets (20122) White ruled filler paper . 3-hole punched to fit in a 3-ring binder. Ultra Thin Rip-Proof that prevents sheets from tearing at ring binder holes. Includes 100, 20lbs. sheets. Ruled 5/16 with margin line.