The front of the mug can be personalised with 12 characters. This will appear in fixed upper case. The reverse of the mug can be personalised with 4 lines of text, with up to 20 characters per line. This case sensitive and will appear as entered. The words \"Dad Happy Father\'s Day from your greatest achievement\" are fixed and cannot be amended. Hand washing is recommended. Ideal for Father\'s Day. Order yours here! | Personalised \'Dad\'s Greatest Achievement\' Mug