Eutuxia 36-Piece Foam Mini Puzzle Mat Alphabet and Number. Fun and Colorful Educational Learning Toy for Toddlers, Babies, and Kids. Safe Non-Toxic EVA Foam. - Walmart.com
Amazon.com: DIMPLE Kids Foam Play Mat (36-Piece Set) 6.25 x 6.25 Inches Interlocking Alphabet and Numbers Floor Puzzle Colorful EVA Tiles Girls, Boys Soft, Reusable, Easy to Clean : Toys & Games