A daycare nesessity! Resilient, 18kg/M3 density foam core, and waterproof 12-mil vinyl covering make these mats strong, durable and comfy. Each mat is 2" thick, heat-sealed and features a built in clear plastic name tag holder. Mat cover and foam are certified Non-Flammable to strict CA-117 Guidelines. Non toxic. Sold in packs of 5. 48" x 24", Blue/Red. Use with Adult supervision.