Quality Park #10 Park Preserve Security Envelopes, Box of 1000 (69122B) #10 (4 1/8 x 9 1/2") Redi-Strip Business Envelopes in Park Preserve 1000ct. Bulk Pack No moisture needed to seal. Simply peel back the strip and fold the flap closed. Protective strip keeps adhesive free from dust, prolonging shelf life. A Sustainable product line utilizing SFI-certified papers in the conversion of envelopes.