Q-Connect Manilla Window Envelopes. High quality, strong envelopes ideal for mail shots, invoices, receipts and statements. Manufactured from 115gsm manilla with a window and self-seal flap. Size: C5 (229 x 162mm).

New Guardian Heavy Duty Envelopes. Extra strong manilla, press seal window envelopes ideal for sending out brochures, reports etc. Weight - 130gsm. Size: (C5) 229mmx162mm

New Guardian Envelope. Manilla C5 window peel and seal envelopes are suitable for mailing important, heavy or valuable items. Manufactured from high quality 130gsm paper, with a subtle ribbed finish and distinctive sheen. Easy open device.