Pink CowGirl Hat Disco Ball Keychain The Keychain is approximately 2” x 2.5” but those are not the exact measurements. Please note that the disco ball has some non-covered space on the bottom, I did not make the disco balls themselves so they did come to me that way, but it is only noticeable if you are looking directly at the bottom of it! They are great for adding style & flair to keys, purses, or where ever you would like to show off these awesome keychains!