Interchangeable letter, number and symbol tiles imprint personalized messages on buttercream and fondant cakes. Slide tiles onto the holder and imprint the design into buttercream or fondant icing to create an easy-to-folow tracing line. With a decorating tip and bag, trace over the imprint for perfect lettering. Also works great with cookie dough. Set includes 1 holder, 2 locks, numbers 0-9, 5 different symbols, and letters A-Z (some with multiple tiles). Letters measure 1" tall.