I purchased enough for 12 tatami mats (64 pieces/4 boxes), but I only used enough for 8 tatami mats (48 pieces/3 boxes), so I have one box left over. It is completely unopened, so it is new. I will ship it as is, with the shipping label attached directly to the box without opening it. Since these are 2cm thick, they can significantly reduce noise, such as children running. It won't be completely silent, but it's much better than nothing. The colors are beige and brown, with 8 pieces of each, for a total of 16 pieces. The brown is a rather dark brown. Corner pieces are also included, so you can create a clean finish without jagged edges.