I accidentally purchased the wrong size. These are joint mats with a lovely color scheme. I've only opened the cardboard box once, but the plastic wrap is still intact. I will pack and ship them as is. The size is for a 6-tatami mat room. These blue and off-white joint mats have soundproofing and insulation functions, and are antibacterial for peace of mind. - Color: Blue x Off-White - Material: Polyethylene - Brand: Tansu no Gen - Features: Soundproofing, insulation, compatible with floor heating, antibacterial - Size: Width 59 x Depth 59 x Thickness 1cm (per mat) Thank you for looking.