Business Source Business Envelopes, Regular, No 9, 24lb., 500/BX, White Wove (BSN04469) Box of 500No. 9 business envelopes are good for everyday mailing. Traditional design includes 24 lb., white wove stock, diagonal seam and fully gummed flaps. General Information Manufacturer: Business Source Manufacturer Part Number: 04469 Brand Name: Business Source Product Name: Diagonal Seam No. 9 Envelopes Marketing Information: No. 9 business envelopes are good for everyday mailing. Traditional design includes 24 lb., white wove stock, diagonal seam and