Glass cleaning cloth-Glass cloths are made of 100% polyester.-It’s easy to clean and not easy to fold. Which can use for windowã€mirrorã€glass. The size is 40*40cm and GSM is 390g/m^2.?-If you are interesting in our products, we will provide you with free samples.?-If you have any requirements, please feel free to contact us any time. We are happy to serve you.