YATUNINK Compatible for Dell Series 31XL Ink Cartridge for Dell Inkjet V525w V725w All-in-One V525w V725w Printer Packing list: Dell Series 31XL Ink Cartridge ( 2BK+1C+1M+1Y ). Volume: Black : 28ml; Cyan: 15ml; Magenta : 15 ml; Magenta: 15 ml. Page yield: Up to 600 pages for BLACK and up to 400 pages for CYAN/MAGENTA/YELLOW. Compatible for Dell printer:Dell All-in-One V525w, Dell All-in-One V725w, Dell Inkjet V525w, Dell Inkjet V725w. We Promise: All products covered by a 100% satisfaction guarantee and 90 days warranty If you have any question, please contact us directly, we will provide high quality after-sales service, to ensure that the customer's shopping experience