Quality Park™ Clasp Envelope, 6 1/2 x 9 1/2, 32lb, Brown Kraft, 100/Box. Quality Park™ High Bulk Self Sealing Envelopes, 9 x 12, Kraft, 100 per box. Quality Park™ Redi Seal Catalog Envelope, 10 x 13, Brown Kraft, 100/Box.