Each mug can be personalised on the front with up to 2 lines of text. Line 1 can hold up to 5 characters and line 2 can hold up to 15 characters in length. Line 1 is case sensitive and will appear as entered. Line 2 will automatically appear in UPPERCASE.You can then add a message to the reverse of the mug over 4 lines up to 30 characters per line. The message on the reverse will appear the same on both mugs. The personalisation on the reverse is case sensitive and will appear as entered.The mugs are ceramic.What's more, this fantastic gift can also be made and dispatched in 48 hours.Hand wash is recommended.Ideal for Wedding, Anniversaries, New Home, Valentines.