Four New RB1-8957-000
Listing is for 4 - you will receive 4 rollers
LaserJet: 4000, 4000N, 4000T, 4000TN, 4050, 4050N, 4050se, 4050T, 4050TN, 4100, 4100DTN, 4100N, 4100TN, LJ4100
LaserJet MFP: 4100, 4101