In Design Sensu Mini White Size: W255 x H155 x D16 (mm) Weight: 31g ＜Won't tear even if wet＞ The blades are made of polypropylene, so they are resistant to friction and won't tear like paper fans. ＜Okay to put in your pocket＞ The thin and flexible blades make it okay to put in your pocket. You don't have to worry about it breaking even in various active environments. ＜Very easy to open and close＞ You can open and close it like a traditional fan by removing the rubber string and sliding the left and right blades. I've only used it a few times indoors after purchasing it.