Carbonless multiple copy sets, available in a variety of coloured stock. Supplied as loose sets, pads or books. Generally used for invoices, receipts and engineer reports. Other finishing options can be added such as numbering, drilling for storing in folders, perforating - you may want the top copies perforated to tear out and leave the bottom copy in the book or pad - the addition of a writing shield helps to protect subsequent copies from previous ones copying through.