play area mat
https://wiki.gta-zona.ru/index.php/5_Qualities_The_Best_People_In_The_71x59_Play_Mat_For_Playpen_Industry_Tend_To_Have
You should inspect your mat frequently for signs worn and tear for example, loose threads or damaged foam. Repair and replace if need be. Always store it inside a dry place to prevent the growth of mold.