The product is a 2 pack of new opem box LD compatible black toner cartridges designed for Brother printers. Specifically, it is for the Brother TN-221 TN221BK model. The toner cartridges are compatible with various Brother printer models such as HL-3170CDW, MFC-9330CDW, HL-3150CDN, and DCP-9020CDN. These standard laser print technology cartridges are of high quality and are ideal for producing professional black prints. Made in the United States, they are safe to use with no significant risk level as indicated by the California Prop 65 Warning.