Personally, Tang Pin Brand. JD.COM Mall, Taobao and Book City. First, it feels good. Very classic. After using it for a while, there were water stains. According to the customer service, I spread out the water scroll, put it in clear water, dry it, and then take it out to write. It's like a new one. And unlike other water-writing cloths, when writing with clear water, it will penetrate into the desktop. A brand made with heart is good. Personal opinion, for reference only.