I received this as a gift in April 2023 and used it about 5 times. There are no stains or marks! I'm selling it at a significantly reduced price, so price reductions are not possible. ■ Product Name: airluv2 donut (airluv2 donut) ■ Color: Cream ■ Size: 330 x 950mm ■ Materials: ・Surface (Mesh): 100% Polyester ・Back (Bottom): 100% Polyester ・Inner Mat: 100% Polypropylene ■ Target Age: Newborn to 4 years old ■ KC Certification*: CB011R560-0001 ■ Manufacturer: (株)poled 1600-7420 (1F Midtown Center, 17-51 Yeoksam-ro, Gangnam-gu, Seoul) ■ Country of Manufacture: China