Wilson Jones Recycled File Pocket, 3-1/2" Expansion, 9-1/2"x11-3/4", Red Expansion files are ideal for bulky records. They feature 3/4" Tyvek gusset reinforced file pocket and heavy-duty RedRope material with two RedRope gussets. Gussets are reinforced. Front and back, laminated with cross grained sheets for strength and rigidity, will not sag. Front is scored for easy accessibility. Back extends 1/2" higher than front, allowing space for indexing contents. Contains 50 percent recycled content.