Quality Park Catalog Envelopes, 9 x 12 Inches, White Wove, 500 Count Box (44532) 9 x 12 500ct. Box of Redi-Strip Catalog Envelopes No moisture required to seal. Peel-off strip enables a longer shelf life 28 lb. 92Bright White / White Wove. 9 x 12 500ct. Box of Redi-Strip Catalog Envelopes