Oxford Expanding File Pockets, Letter Size, 3 1/2" Expansion, 100% Recycled, Assorted, Box Of 4 - Crafted with fully reinforced gussets and laminated tops, these Oxford file pockets can withstand the rigors of your modern office. Each letter-size, 8 1/2" x 11", pocket with 3 1/2" expansion accommodates large stacks of paper for your convenience.