Kotatsu Top Plate Anti-Slip Mat
Heat resistant silicone material.
Simply place it on top of your comforter and place it on top of your bed. You can also place it between the main unit and the futon to prevent the futon from slipping.
The surface is large, so it does not slip easily.
Compatible with kotatsues up to 23.6 - 53.1 inches (60 - 135 cm).
Can be easily cut with scissors to fit your table.