This is a replacement sponge gathering roller set compatible with SR3030, SR840, SR970, 1075, 2075, 2105, 1357, 1107, MP 7000, MP 7500, MP 8000, and MP 8001 printers.Each set contains 10 rollers.Part numbers: B830-3503 and B478-3503.Designed to restore functionality as a direct replacement for the sponge gathering roller component.