BAZIC #10 Peel & Seal Security Envelope (500/Box) Security Envelopes with SelfAdhesive Strip for easy closure. Size 4 1/8" x 9 1/2" or 10.4 x 24.1 cm. 20 lbs or 75 g/m2.Large wholesale bulk cheap discount envelopes package is suitable for office and home usage. " Case Pack 5 Please note: If there is a color/size/type option, the option closest to the image will be shipped (Or you may receive a random color/size/type).