These HP 305A magenta toner cartridges are fully-remanufactured toner cartridges - not refilled, refurbished or reconditioned. Each cartridge is disassembled to remove all old toner and thoroughly cleaned before being reassembled. Only original equipment manufacturer (OEM) cartridges are used. All parts are replaced to ensure optimum print performance and page yields. Each cartridge is manufactured with the highest quality new and recycled components. Compatible with: HP Laser Printers: Color Laserjet Pro 300 M351, Color Laserjet Pro 300 M375, Color Laserjet Pro 400 M451, Color Laserjet Pro 400 M475 Yields up to 2,600 pages.