Compatible With Dymo 5Xl / 4Xl Thermal Label Printer Replacement Did you damage or lose your DYMO spool assembly? Do you need to quickly swap label sizes? These OEM-compatible replacement parts let you keep different labels ready for quick use. This product is a direct replacement for the OEM DYMO part SKU 1762422. Compatible Printers DYMO LabelWriter 4XL WARNING: Not compatible with DYMO 450 series printers, which are smaller than DYMO 4XL printers. Note: This product will come disassembled and will require assembly by hands. No tools are required. Please follow included instructions on the packaging. Compatible only with DYMO LabelWriter 5XL / 4XL printers. Make sure you have these exact printers! WARNING: Not compatible with DYMO 550 / 450 printers, which require a shorter rod. Snap-fit action, End Cap clicks on to the Spool Rod like OEM parts. Ribbed rod, interchangable with OEM parts, assembles together without tools. Adjustable width, fits label widths up to 4 inch and down to 3/4 inch.