GTS  4 Pack Replacement Toner Cartridges for Brother TN315 Set This Value Combo includes Four Toner Cartridges (1 Black, 1 Cyan, 1 Yellow, 1 Magenta) Premium Quality Replacement Toner Cartridge is made by ISO9001 Certified Factory to Meet OEM Standards Black Toner Yield: Up to 6,000 Pages at 5% Coverages; Color Toner Yield: Up to 3,500 Pages at 5% Coverages 90 Days Money Back Guarantee, 180 Days Manufacturer Warranty Against Product Defect