Our refilled ink cartridges are made from REAL XLs. This is really important as if you look at the images above many customers are getting ripped off on eBay by sellers simply placing an XL sticker on top of a standard capacity cartridge which hold half as much ink.
Real 301XLs have large sponges which means they hold significantly more ink than standard capacity cartridges. You can tell if you have a real XL by pealing off the top sticker on the black cartridge and a sponge should be visible in the lower holes & should weigh 32g. If it has no sponge, it is not an XL and you need to submit a claim against the seller. A real 301XL colour should weigh 37g without the clip.
Please note these cartridges have been refilled after being previously used therefore they will display low ink which is normal but does not affect the page yield or printing quality. Simply ignore the low ink warning and continue printing.