How tall is a 4.2 ounce bottle of Jean Paul Gaultier Le Male cologne?

Seems like a silly question, but I have two bottles of LeMale I want to sell. There is no printing on them at all. I don't know whether they are 2.5 ounce or 4.2 ounce. I know they're genuine, but they could be a testers I guess..I just want to make sure I list them correctly. Thanks for the help