Features: 1.Quality Guarantee: No less than 98% for small toner cartridge, No less than 97% for big toner cartridge, which is normal, we will replace the defective products for our customers. so far we have not received any bad feedback from our customer about warranty. we strictly control quality and believe quality is the best after service. 2.Material: a)TONER is from LG b)MR is SKC MR c)OPC---TAIWAN OPC ,original OPC d)PCR---NEVER POLLUTE PCR 3.Quality depiction: a) Background: <0.08 b) Solid area density: >1.40 c) Resolution index (inches): >0.0176 d) Ghosting: N/A e) Text haze: N/A 4. packing: a) Neutral yellow box with cartridge model only.its function is for shipping b)Neutral color box---Digitar star color box with cartridge model and compatible printer model.(we are modifing) c) Customer's brand packing will be offered if order quantity is in large condition.