Gym mat approximately 50cm x 50cm x thickness approximately 25mm 4 mats per box Color: Blue Chip I purchased this, but I didn't use it because the room in my new apartment is small and it wasn't what I expected. It has not been opened since it arrived. I will ship it as it is packaged. Shipping will be in the cardboard box shown in photo 16. There is a small hole in the cardboard box from carrying it, but there is no problem with the product. 4 mats per box You can also purchase a set of 2 boxes (8 mats) for 12,000 yen.