These MailTuf mailing bags are C4+ sized and measure 250 x 375mm meaning they are ideal for sending A4 size and slightly larger items. With their easy seal closure these strong 75mu (300 gauge) mailing bags enable you to pack items quickly with no need for extra tape, increasing your despatch speed. MailTuff mailers are constructed from double layers of co-extruded polythene for extra strength and protection in transit. We supply these in an economical box of 500 bags. Please note: the MailTuf range may differ slightly in colour. Polythene manufacturing has a 10% tolerence for lighter of darker colouring.