JAM Paper Black business button and string envelope measuring 5 1/4" x 10" and allow keeping documents safely and are expandable up to 1", sold as 12 per pack. JAM Paper Black #10 Plastic Business Envelopes with Button and String Tie Closures are great for organizing, storing, and protecting your letters, receipts, checks, bank slips, and more! Each envelope is made if sturdy plastic has a straight flap opening and a two button, string tie closure. Each of the envelopes is a little over 4 x 9 inches in size. Use them at the office to keep track of business purchases or at home to store letters or bills.
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