HP Laserjet 4250/4350 Toner Twin Pack - Black, HP LaserJet 4200, 4200DTN, 4200DTNS, 4200DTNSL, 4200N, 4200TN, 4250, 4250DTN, 4250DTNSL, 4250N, 4250TN, 4300, 4300DTN, 4300DTNS, 4300DTNSL, 4300N, 4300TN, 4345, 4345MFP, 4345XMFP, 4345XMMFP, 4345XSMFP, 4350, 4350DTN, 4350DTNSL, 4350N, 4350TN, M4345, M4345MFP, M4345X, M4345XM, M4345XS - TWIN PACK