Tatami mat indentation prevention mat. Use it under desks, chairs, etc. on tatami mats. The size is 50cm x 50cm, and the thickness is about 8mm, making it sturdy. I think you can also use it to protect flooring. Four non-slip pads (approximately 7.5-8mm square) with adhesive on one side are included. Material: Main body: Acrylic resin coated non-woven felt Non-slip: Non-woven fabric This is a set of 2 (2 mats and 8 non-slip pads). If you wish to purchase only 1 set (1 mat and 4 non-slip pads), it will be more expensive due to the high shipping cost, but we will accommodate you for 2400 yen including shipping. Please let us know via comment before purchasing. Season: All season #NewHome #Moving #Renovation