This ruler was specifically designed and created to help those who have maximized egos and minimized measurement needs. 

Rulers are shipped anonymously with no information identifying the sender; all rulers are accompanied by a helpful card informing the recipient that someone thinks this ruler should be more than adequate for the recipient. 

Is this real or is this a joke?

It's both. It's meant as a joke but is in fact a real site, a real company, and when ordered - a two-inch ruler really will get sent to the recipient specified.