DESIGNED FOR KIDS: Each piece of plush interlocking carpet tiles is made of thick EVA foam and covered with soft and cozy coral velvet. It is non-toxic and harmless, suitable for baby's room, which can greatly reduce injuries caused by infant falls. This way you can make sure your child is playing in a safe environment. UTILITY: Each shaggy foam square rug is made of thick EVA foam and covered with soft and cozy coral velvet. Each shag interlocking square rug is 0.6 inches thick and measures 11.8 inches x 11.8 inches. Set includes 36 square rugs 12 each of purple,light brown,pink , 36 edgings and 8 strips of rug tapes.