The image shows a close-up of a door handle on a train. The handle is silver and has a curved shape. On the left side of the handle, there is a blue handicap symbol and a black sign with white text. Below the sign, there are two buttons - one for entering the train and the other for exiting the train. 

On the right side, on the bottom right corner of the door, there has a red circular button with a white circle in the center. The button has a black outline and is surrounded by a white border. Below that, there appears to be a black and white sign with text in Spanish. The text on the sign reads "La persona que se serprendida" which translates to "The person who is not allowed to enter the train" in English.

There is also a small red sticker on the door with instructions on how to use the button. The background of the image shows the interior of the train, with a seat visible in the bottom left corner.