Veterinary Compatibility: Specifically designed for veterinary use, featuring a blue paw print and clear warning text High Label Count: Includes 400 labels per roll, providing excellent value for frequent use DYMO Compatibility: Works with DYMO 400 and 450 printers, ensuring seamless integration with your existing equipment Rectangular Shape: Labels are rectangular, fitting standard label sizes and making them easy to apply Made in the USA: Proudly manufactured in the United States, ensuring quality and reliability RJS Brand Blue Paw labels with veterinary warning - DYMO 400 and 450 compatible and certain other printers, but NOT compatible with DYMO 550 and 500 series printers