59x59 play mat

https://city-wiki.win/index.php?title=12_Stats_About_Activity_Mat_For_Babies_To_Make_You_Look_Smart_Around_The_Water_Cooler

Make sure to check your mat often for indications in wear, such as loose threads or damaged foam. Repair or replace it as needed. Make sure you store it in the dry location to stop mold growth.