Strathmore Writing Envelopes, #10 Square Flap Writing 25% Cotton Laid Finish 24 lb., 4-1/8 x 9-1/2 Inch 500 Envelopes/Box - Sold as 1 Box, Bright White (M17802)

25% Cotton #10 Square Flap Envelopes (4-1/8 x 9-1/2 Inch) 500 envelopes per box 24lb (90 gsm) Laid Finish Matching paper stock available Inkjet & Laser Compatible. Acid Free for Archival purposes