Toner Tap &copy; Refill Kit for HP LaserJet Pro 400 M425dn M401dw M401dn CF280X 80X (6.9K) (4-PACK) W/CHIP Clean recycable refill bottle toner for HP PRO 400 80X Includes Chip for printing up to 6,900 pages Includes toner powder prints up to 6,900 pages at 5% coverage Size of chips and bottles may vary from those shown in picture Inludes step by step DIY refill instruction, includes pair of latex glove