1. Defective rate: 0-0.03%2. Warranty: 12-18 months; 1:1 policy for defective products with a six months replacement guarantee.3. Customer-focused Humanized Product Series:*Text Output Special Edition: Your cost-saving expert and the best choice for daily office printing work. Toner powder refillable 2 times.*Professional Edition: Widely used in all kinds of printing medium and environments. Performance same as or even better than OEM. Toner powder refillable 3-5 times.*Advanced Edition(Customized design): More excellent performance than OEM. Access to print in the tracing paper; Toner powder refilling at 5 to 8 times; Blackness improved by as much as 30% of original toner cartridge; Page yield improved by as much as 20%.4. Packing: Neutral or with customized design. Plastic bag+ air bag + box + carton5. Wiztoner compatible toner cartridge performs as well as, or even better than the toner cartridges you buy from original equipment manufacturers. Sample enquiry is welcomed for your testing before our partnership.6. Declare: All trademarks shown here are for reference purpose only. They are the property of their respective owners, and we are not authorized to sell items bearing such trademarks.