Columbian COR02 (#10) 4-1/8x9-1/2-Inch Recycled Envelopes, 500 Count Ideal for all business, professional and personal correspondence. Recycled 24lb white wove stock. Manufactured from recycled content paper with a minimum of 30% post-consumer material. Executive Style diagonal seam V-flap construction. Moisture activated gummed seal. (#10) 4-1/8 x 9-1/2 500 envelopes