Replacement shipping Covers for Brother TN 420, TN 450, TN-2220. The covers protect the developer roller from damage caused during shipping and storage of the cartridges. Sold in 10 packs only.Compatible laser printers:TN 450 - Brother All-in-One Machines MFC-7360N, MFC-7460DN, MFC-7860DW. Brother Copy Machines DCP-7060D, DCP-7065DN. Brother Laser Printers HL-2220, HL-2230, HL-2240 series, HL-2270 Series, HL-2280DW.