The Cake Boss Letter and Number Fondant Stamp Set is ideal for impressing names, letters and numbers and other messages in rolled fondant or buttercream. The set is constructed from durable plastic, and includes two of each consonant, three of each vowel and two of each number from 0 to 9. Use the impressions as a guide to pipe over with icing. A convenient tray is included to align and hold letters and numbers for imprinting. Hand washing is recommended.