【Improved Inner Material Rug】 Size: 120x160 cm (approx. 1.2 tatami mats). Weight: 1.34KG. Back: Non-woven fabric (non-slip). Pile length: approx. 40mm, thickness: approx. 10mm. After improvement: Excellent elasticity, soundproof, and no strange odors. Color: Light Gray 【Rug Material】 Made of 100% ultrafine fiber material, it is fluffy and has excellent elasticity. It is difficult for dust and dirt to get tangled, making it easy to clean. It can be used for air conditioning in the summer, and it has also been proven to pass heat resistance tests, so it can be used with hot carpets and floor heating in the winter. 【Washable】 This item is lightweight and dries quickly even after washing. Because it is light, it can be folded, and washing and storage are easy. Hand wash or machine wash. We recommend using a laundry net. It can be folded, making it convenient for storage. Even after folding and reusing, there are no folding marks. 【Non-Slip Processing & Soundproofing】 The back is treated with a strong non-slip processing. You don't have to worry about the rug slipping even if children run around, so you can rest assured. The back also uses non-woven fabric, which protects the flooring from scratches. In addition, it can absorb sound and impact, and you can expect a soundproofing effect just by laying it on the floor. 【Safe Rug】 The cotton wool on the surface of the carpet can capture and absorb dust particles floating in the air, improving the indoor air quality. Formaldehyde is also not detected, making it a safe rug for families with children with weak resistance and the elderly. 【Customer Notes】 ※ In the case of products immediately after manufacture, there may be a peculiar smell of polyester. In that case, the smell will be reduced by drying it in the shade in a well-ventilated place. ※ Because the product is folded for transportation, there may be creases, distortions, and deformation such as insufficient dimensions when opened, but it will slowly recover if you spread the rug and use it for about a week.