The frame is made of stainless steel, so it is rust-resistant, and the fan surface is made of silk fabric, making it durable. The range of motion is 0-170°, and when opened, the silk fabric pulls together, producing a pleasant sound, making it very cool. Color: Black Size: Bone length: Approximately 33cm. Bonus: Comes with a storage case Used only a few times, but there is some cloudiness on the stainless steel parts from the beginning. Please check the photos.