abc mat

http://www.harrika.fi/wiki/index.php?title=10_Principles_Of_Psychology_You_Can_Use_To_Improve_Your_Baby_Playpen_Mat_50x50

Make sure to check your mat often for signs worn and tear, such as threads that are loose or damaged foam. Repair or replace it if needed. Always store it in dry conditions to minimize the growth of mold.