Alphabet & Number Tracing Cards, Reusable, Dry Erase, Upper & Lower Case, 31 Large Reusable Cards, Repetitive Tracing Alphabet And Number Cards, Improve Writing Skills, Flash CardsReusable Dry Erase Tracing Cards! Perfect for Little Ones Learning their Letters and Numbers. INCLUDES: 31 cards printed front and back (26 Uppercase Letters, 26 Lower Case Letters & 10 Numbers). EXTRA LARGE cards for little hands: 14. 2 cm x 16. 3 cm. REUSABLE: Use them OVER and OVER again! Works with any dry or wet erase markers.