These compatible Pitney Bowes 610-7 Postage Meter Tape are for use in the Pitney Bowes DM500, DM525, DM550 and DM575 postage meters mailing machines. They replace the original Pitney Bowes item #610-7 and are designed to offer the same great quality and performance as the Pitney Bowes product, but at a fraction of the cost. Perfect for adding postage to oversized envelopes and packages.