What does eBay Ready mean?

eBay has certain guidelines that must be followed for the images to be approved and displayed on their website.These guidelines are: The height of the image must be at least 500 px in size The resolution of the image must be 72 dpi The image should be displayed in the SRGB colour space The format can be JPG or PNG The background colour should preferably be white, but any other background colour is also fine