JAM Paper® Plastic 3 Hole Punch Binder Envelopes with Hook & Loop Closure are the perfect additions to any binder! Measuring 9 1/2" x 1 1/4" x 11 1/2" and featuring a 1" expansion, these spacious letter booklet envelopes make it easy to carry your essentials from class to class without extra baggage. Three hole punches allow for binder use and eliminate the need for various pencil cases or folders! Organize and store your essays, drawings, projects, loose papers and forms without hassle or cramming. Seal and protect with the trusty hook and loop closure to ensure contents stay safe in one place while you're on the go!