The Martin Yale EX5100 applies one adhesive tab or wafer per pass to seal mail pieces at a rate of up to 7,500 pieces per hour. It reliably handles open-ended mail without misfeeds, turning folded letters into ready-to-mail documents. It adjusts to accept mail from 5" to 12" wide. The adjustable tab dispenser allows you to precisely control the placement of the tab. The EX5100 accepts rolls of up to 5,000 tabs.