DADWAY Portable Fan For baby carriers [Color] Gray [Size] Body: Longest: Approximately 11.5cm Shortest: Approximately 8cm Thickness: Approximately 2.5cm (Approximately 4.5cm including belt loop) Two-level wind speed adjustment Belt type, so it can be attached to: Shoulder straps of baby carriers Shoulder straps of backpacks! The motor makes noise when running. It is not quiet. I used it when going out, such as in the park, for walks, and for shopping, so I didn't mind it, but you may notice the motor noise indoors or in quiet places. I am selling it because my child has grown and no longer uses a baby carrier. There are no major noticeable scratches. It has not been dropped. Since it is a used item, it is not like new, so please refrain from purchasing if you are concerned about minor details.