These are premium quality bags, co-extruded and made from 100% virgin polymer. Perfect for mailing your items at a cost efficient price, while maintaining great presentation. 5000 strong large purple mailing postal bags, size 22"x30" (550mm x 750mm), with 40mm 'peel & seel' lips. All our mailing bags are fully opaque - items placed inside the bags are not visible through the film.