Large Joint Mats, 41cm, 48 pieces, PE resin, low formaldehyde, equivalent to 6 tatami mats, washable, soundproof, insulation, heat retention, with side parts ・Brand new, unused. ・Received recently, but the size was incorrect and didn't fit the room size. ・Green x Ivory ・Shipped via eco-friendly delivery. ****To those considering purchasing**** ・Photos & product description are copied from the purchase source. ・As stated in the description, I thought it would be a "6 tatami mat" perfect size, but I purchased it thinking it was a "6 tatami mat equivalent (actually a bit smaller)" type. When I actually laid it out, one corner of the room was left with space for only one joint mat. ・It's like when you lay a mat that's slightly smaller than 6 tatami mats, and the edges are not enough. <<Please make sure you understand this.>> ・With side parts ・Soundproof ・Heat retention ・Moderate elasticity ・Non-slip ・High durability ・Floor heating compatible ・Low formaldehyde ・ISO ・Antibacterial and deodorizing ・Washable ・Removable 【Product Size】 Per piece... (approx.) Length 41 x Width 41 x Thickness 1cm 【Material】 PE resin