I have a Zebra ZP 505 label printer I use for Fed Ex as a secondary machine for our ministry. The other one is a ZP 500 I believe. I am out of labels and want to be sure I order the right ones. The part # on these is: 154254-354 RIT and measures 4 x 6.75 with a 1 inch core. I have no idea on the direct thermal, removable direct thermal, etc. Can you tell me which I need? Also, these have the tab label across the bottom of the main label.

The Zebra ZP 505 printer accepts roll label media with a core size of 1" and a maximum outer diameter of 5". The maximum print width of the Zebra ZP 505 is 4.09". The RL2398 should be compatible with your printer as long as you purchase direct thermal labels.

What is the shelf life?

The shelf life of our label materials is 1-3 years, depending on storage conditions.

Will these labels work with ZP 450 printers?

The RL2398DT features 4" x 6.75" Standard White Direct Thermal labels on a 1" core with a 4" outer diameter which meets the specifications of Zebra's ZP 450.

What colors are available for these labels?

At this time our thermal roll materials are only available in white. I will be happy to forward your inquiry for colored thermal materials to our Product Development Team to review for future consideration. Below is a link to our sheet label materials which include a variety of color options and can be used in standard inkjet and laser printers. https://www.onlinelabels.com/browse_material.aspx