The product is a set of genuine Brother DR-221CL drum units sealed in bags, specifically designed for use with Brother laser printers. The drums are compatible with various Brother models such as MFC-9330CDW, HL-3140CW, HL-3170CDW, MFC-9130CW, and HL-3180CDW. The color of the drums is multicolor, and they come with a California Prop 65 warning. This product is perfect for those in need of high-quality printer supplies for their Brother printers.