I bought these to use, but I ended up with extras, so I'm selling them cheap! I purchased them online, so they are unopened. Two sets of 15 pieces each, brand new and unopened ^^ If you only want to buy one set of 15 pieces, it will be 1500 yen. I used them as non-slip mats under the carpets at home (*^^*) #Daiso #NonSlipMat #Thick #BulkSale