Brightly colored, interlocking foam tiles provide a soft, safe floor covering for play or learning. Dense, EVA-foam tiles measure 19.7" x 19.7" each. Easy-to-clean, waterproof surface is treated with a patented anti-bacterial protector. Pieces fit together like a jigsaw puzzle. Stack for space-saving storage. Includes 24 tiles, 6 each Red, Blue, Green, and Yellow. SIZE: 10mm.