Quality Park™ High Bulk Self Sealing Envelopes, 9 x 12, Kraft, 100 per box. #20 Squat Paper Grocery, 50lb Kraft, Heavy-Duty 8 1/4 x5 5/16 x13 3/8, 500 bags. Quality Park™ Redi Seal Envelope, Security, #10, 4 1/8 x 9 1/2, White, 500/Box.