Complete Package: 600 Computer Checks Printed + 500 Self Seal Envelopes Compatible for QuickBooks Complete Package ( Compatible for QuickBooks) : Includes 600 Voucher Check on Top + 500 Double Window Self Seal Check Envelopes Envelopes with a Peel & Seal Flap guaranteed to fit the QuickBooks Computer Checks Ultimate Security Features on check Company Logo Printed Free On Checks