No comments needed, immediate purchase is possible. Priority will be given to the person who purchases first, even if there are comments. New, unused. Purchased from Amazon. Selling because I ordered the wrong size. Two pieces together. One is opened, the other is unopened. The back is whitish, but I think it's due to the material. There is no smell, but only for those who don't mind. Images are uploaded. Size: 40 x 60 cm Material: Diatomaceous earth Color: Gray 【4-Layer Structure】Microfiber technology fabric layer (technical fabric, comfortable to step on), diatomaceous earth water-permeable layer (many pores, the first layer absorbs water and helps water penetrate), diatomaceous earth rubber absorbent layer (absorbs water sufficiently), and bottom rubber non-slip layer (special non-slip technology ensures safety), making it easy to use. 【New Diatomaceous Earth Immersion Technology】Using the latest diatomaceous earth immersion technology, the structure of each layer is immersed in a special solution containing diatomaceous earth, thereby allowing the diatomaceous earth factor to penetrate the product. With this technology, our diatomaceous earth bath mats have none of the drawbacks of conventional plate-type diatomaceous earth, such as being hard, uncomfortable to step on, fragile, and difficult to store, while still possessing all the advantages of diatomaceous earth, being soft, feeling good on the feet, and being offered at a low cost. 【Water Absorption and Quick Drying】Diatomaceous earth bath mats have excellent water absorption and quick-drying properties. Diatomaceous earth, also known as "breathing earth," has a dense network of pores that quickly absorb and dry moisture. By adjusting the content of diatomaceous earth in the solution, soft diatomaceous earth bath mats can achieve excellent water absorption and drying effects. 【Antibacterial and Deodorizing】Diatomaceous earth has good humidity control and can effectively prevent odors and deodorize (air purification). As a chemical molecule, it smells when it hits the olfactory cells in the nose, and odor molecules present in the air often dissolve in the moisture in the air. Diatomaceous earth automatically releases moisture at low humidity and automatically absorbs moisture at high humidity. Because of its good moisture absorption, odors adsorbed to moisture naturally disappear. When diatomaceous earth releases water vapor, the release rate is extremely slow, so the human body does not perceive the odor, making it ideal for toilet spaces! 【Non-slip】 No smokers. Takkyubin (Home Delivery Service)