Limited price reduction until the end of the Super Mercari City period (until 12/16). The center part looks dirty, but it's not dirt; it's the fibers being slightly crushed from use, which makes it appear that way depending on the light. I think even if it's new, it will look the same after a few uses, but if you're concerned, please refrain from purchasing. mm DARTSLIVE Home Throw Mat Throw Line Noise Reduction Floor Protection Brand: Darts Live (DARTSLIVE) Material: Nylon Color: Black Product Dimensions: 77.5 width x 312 height cm Product Weight: 2.52 kg Shape: Rectangular Size (approx.): H312.0cm x W77.5cm | Material: Surface...Nylon, Back...Rubber * Due to the nature of the product (rubber/nylon), there may be a size tolerance of a few cm. A flame-retardant dart mat with the DARTSLIVE logo. The size is approximately 312.0cm x 77.5cm, making it easy to use at home, and you can see the position of the throw line just by laying it on the floor. It also helps protect the floor, so it is recommended for those who play darts at home!