Supremex 24 lb. envelopes, 4-1/8x9-1/2". (FSC Certified No Logo). No. 10 open-end policy envelopes are great for statements, invoices, policies or business stationery. Center seams provide extra strength. Fully gummed 1-3/8" flaps offer a secure seal. General Information Manufacturer:Supremex, IncManufacturer Part Number:5000440Manufacturer Website Address:http://www.supremex.comBrand Name:SupremexProduct Name:Open-End No. 10 Policy EnvelopeMarketing Information:No. 10 open-end policy envelopes are great for statements, invoices, policies or business stationery. Center seams provide extra strength. Fully gummed 1-3/8" flaps offer a secure seal. Packaged Quantity:500 / CartonProduct Type:Envelope Product Information Mailer/Envelope Type:BusinessMailer/Envelope Classification:#10Mailer/Envelope Width:4 1/8" (104.78 mm)Mailer/Envelope Length:9 1/2" (241.30 mm)Basis Weight:24 lb (10886.22 g)Closure Side:Open Side Physical Characteristics Product Color:WhiteProduct Material:Wove Miscellaneous Recycled:NoAssembly Required:No Product Numbers: 5000440FSCNL 672989001509 1050384 SPX5000440