Please see the description and photos for the contents of your desired MIXED PACK Dimensions: B4 HARDBACK CARDBOARD ENVELOPES: 352 x 250mm (Royal Mail Large Letter Sized) - Peel and Seal - 350 GSM | C4 SIZE WHITE ENVELOPES: 229mm x 324mm - 90GSM - Self Seal C5 SIZE WHITE ENVELOPES: 162mm x 229mm - 90GSM - Self Seal | DL SIZE WHITE ENVELOPES: 110 x 220mm - 90GSM - Self Seal C5 GUMMED ENVELOPES: 229 x 162mm - 120 GSM - PLEASE NOTE: This Envelope is NOT Self Seal, must be moistened ALL ENVELOPES ARE NON WINDOW - Perfect for Light use, Everything you need for the Home and Offices