RIGHTINK for Kodak 30 xl Ink Printer Cartridges 4 Pack (Black Tri-color) Combo Set for ESP 310 C315 2150 2170 Hero 3.1 5.1 Package List: 2 x 30XL Black Ink Cartridge + 2 x 30XL Tri-Color Ink Cartridge Page Yield: Black - 670 Pages; Color - 550 Pages (determined by 5% page coverage) Compatible Printer Model: ESP series ESP C110, ESP C310, ESP C315, ESP Office 2150, ESP Office 2170, ESP 3.2; Hero series Hero 3.1, Hero 4.2, Hero 5.1 GUARANTEED :Good after-sales service and all products covered by a 100% satisfaction guarantee and 90 days warranty Feature : 1. The color can perform as the original products. 2. The rest of ink rate is 0 and the usage rate is 100%.