Bed Sore Prevention Mat Home Nurse PET (Pressure-Relieving Mat, Doesn't Tire, Comfortable Sleep, Excellent Breathability, All-Season Use) Made in Japan: Eiheiji Sizing Manufacturing Size is not indicated, but amateur measurement is approximately 50cm x 60cm. There are some pills, and it shows a little wear, but it can still be used well. It can also be washed, so it can be used cleanly.