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Great product for helping with prewriting skills, number and letter recognition and formation. My 4 year old loves to practice his writing with this before writing with the pencil on his paper to help with his form. It is a quality item, my only wish is that each one were a little deeper for the use of salt or rice in them for more sensory goodness in the learning; you can use these things with the pen that comes with it but the spaces are a little small for his finger tip to actually move the materials through the letters. We do love this product though!