After reading previous reviews I realized this material is terrible for luxury or premium leather. I drive a 2020 Mercedes Benz and got them for simple spills or spot cleaning and if I tell you these things take the color out of my leather man. it's like dark grey, it's terrible. I hope it comes back eventually (not goes away like most issues because that's what it's done to my skin) because I'd hate to bring it back to MB and details. And who knows if there's even a way to reverse it. Idk wth is in this material but I'm shocked it ruined my skin like that. It might work for older leathers, but for good quality leathers, especially matte black leather like mine, that's a big no-go. If I could put negative stars, I would! I just bought a car and now there is a gray stain on my seat. ridiculous!