I have this one in blue. It is about 12 inches long and it fans like crazy with little effort. It pretty durable so far. I can't find any like this on amazon without the design or in other colors.

https://www.amazon.com/Dragon-Yang-Folding-Large-D13039YY/dp/B00276BBU8/ref=sr_1_5?ie=UTF8&qid=1493269270&sr=8-5&keywords=hand+fan+folding+dragon