Large clasp envelopes are a staple in any office. Whether you need to mail a large document or just keep the pages of your annual report together in your desk, these Office Depot manila clasp envelopes can help. Reinforced metal clasp closure helps secure your documents inside the brown envelopes. Clasp envelopes in brown measure 9" x 12". Box of 100 envelopes. Contains Recycled Content - See Specs for Details.