supplyhut supplyhut 12.5x9.5 Inch White Rigid Stay

supplyhut 12.5x9.5 inch white rigid stay flat mailers are constructed from 250 GSM cardboard stock. Each envelope measures 12.5 inches wide by 9.5 inches long with a 1.5 inch rigid profile. The self-sealing adhesive strip closes by pressing the flap down without moisture or heat activation. The rigid cardboard construction maintains a flat profile during transit to prevent bending or folding of contents. White exterior surface accepts pen, marker, and printed labels. Pack contains 50 individual mailers. Each mailer accommodates flat items measuring up to 12.25 inches wide by 9.25 inches long. The cardboard thickness resists compression and crushing during handling and stacking. Manufactured in the United States. Individual mailer weight is 0.12 pounds. Total pack weight is 6 pounds.250 GSM white cardboard stock provides a rigid flat structure that resists bending during transit; each envelope measures 12.5 inches wide by 9.5 inches long by 1.5 inches thick when sealedSelf-sealing adhesive strip on the flap closes by pressing down without requiring moisture, heat, or additional tape; adhesive remains tacky until activatedInterior usable space accommodates flat items measuring up to 12.25 inches wide by 9.25 inches long; rigid walls prevent contents from bending or creasing during shipmentPack contains 50 individual mailers; each mailer weighs 0.12 pounds; total pack weight is 6 poundsWhite cardboard exterior accepts handwritten addressing with pen or marker, printed address labels, and postage stamps; surface is uncoated matte finish