This pack of 12 Silvine duplicate receipt books are ideal for the self-employed for recording payments.This Silvine duplicate receipt book is ideal for the self-employed who need to give out receipts upon payments from customers. This is a duplicate receipt book which includes 2 blue carbon sheets for creating a carbon copy of your written receipt. The back of the top copy is also gummed so you can lick it and stick it onto an invoice or envelope. The receipts themselves have spaces for recording date, receipt number, payment amount and the payment details. They are perforated for easy removal and card backed to have a strong surface to write on.. Pack of 12. 50 duplicate receipts. 2 blue carbon sheets. Perforated. Gummed back on original receipt. Sections for recording all payments requirements. 150x105mm