Purchased in 2021. Used very little initially, but used primarily after the birth of my second child. ⬛︎Notes: - Some scribbles. - Being white, some yellowing has occurred due to aging. - Missing parts (anti-slip pads). I mainly used it in the corner of a room where it was difficult to slip, so I didn't use all of the anti-slip pads. Therefore, I have lost some of the anti-slip pads.