Children Play Mat - Alphabet ABC Floor Mat for Kids - (Educational, Safe, Durable and Washable EVA Foam Puzzle Mat) 26 Pieces: Easy-to-assemble 12x12 inch interlocking pieces. Non-Toxic EVA: Made of high quality EVA foam that is safe, non-toxic, and non-smelling. Large Play Area: Covers 26 square feet, allowing your kids to play safely and comfortably. CPSIA Standards: Meets or exceeds United States Consumer Product Safety Improvement Act for toys. Injury Protection: Standard 0.375 inch (10 mm) thickness prevents kids from hurting themselves.