We are a professional manufacturer which main produce ink and toner cartridge for HP, Kyocera , Epson, Sharp, Ricoh about 23 years. So now we have a lot of customers in many countries , they are all give us higher valued because of higher quality, best price and elite service About toner cartridge , i can show our OPC Drum to you with attachment , please check it .our toner cartridge was test one by one, and then packed it , so the quality is 100% best About our ink cartridge , the bulk ink are imported USA , so the ink cartridge is very best , we offer 1 years warranty to you However , if you have any questions or demands, please feel free to tell me, your any questions must be higher appreciated