I am using multiple joint mats, and I don't know where I bought them. I have used them for about 1-2 years. The Disney ones were washed and stored in the closet. I wasn't sure about the plain ones, so I washed them this time. There are some stains that won't come off, possibly from colored pencils or crayons. Please refer to the photos for details＼(^o^)／ Please refrain from purchasing if you are sensitive to used items. Shipping size is 160cm.