Mohawk BriteHue Envelopes, 10 Commercial Flap Vellum Finish 24lb / 60 text (89 gsm), 4-1/8 x 9-1/2 Inch, 500 Envelopes/Box, Sold as 1 Box, Blue (M99808) #10 Commercial Flap Envelopes (4-1/8 x 9-1/2 Inch) 500 envelopes per box 24lb / 60 text (89 gsm) Matching paper stock available Inkjet & Laser Compatible