The Tadpoles ABC Playmat Set has 36 pieces of removable letters and numbers as well as 24 border pieces. Its intended for children aged 3 years and above. The playmat is made of huge interlocking foam puzzle pieces that can be reconfigured in different arrangements. The EVA foam playmat offers a soft surface for your little one to play on. With its colorful numbers and letters, it also doubles as a learning tool. You can fold it for easy storage and transport. This bacteria-resistant puzzle-piece playmat covers 36 square feet.