Cool Toner 4 Pack Compatible 305A Toner Cartridges Replacement for HP LaserJet Pro 400 Color M451 MFP M475 series, LaserJet Pro 300 Color M351a MFP M375nw Support - advanced technology ensures stunning performance Service - Phone services for technical support Warranty - 3-years warranty; Replacement or Refund upon request HIGH YIELD - Cartridge Yield: 2200(black) and 2600(color) MODEL - Compatible Printer Model ---LaserJet Pro 300 Color M351a/MFP M375nw, LaserJet Pro 400 Color M451 series/MFP M475 series Vibrant and accurate color Clear and precise printing Consistent performance