MC1-1000-422 is a label maker cartridge designed for use with Brady BMP41, BMP51, and BMP53 portable label printers. It features permanent polyester (B-422) material with black on white printing, providing durable and long-lasting labels. The cartridge offers a label size of 1.000" W x 25' H (25.400 mm W x 7.620 m H), making it suitable for various identification and labeling applications. The product is RoHS compliant, passing 2002/95/EU requirements. Common applications include product identification labels, barcode and tracking labels, and asset tracking labels in industrial and professional environments.