These are blinds for a veranda window. They are 83 cm wide and 210 cm long, and come as a set of two. Two blinds were used on one large veranda window. They were used for about 3 months. The installation method is either on the curtain rail, the window frame, or with screws. I apologize if the explanation is insufficient, but please feel free to ask any questions in the comments. Due to shipping costs, anonymous shipping is not possible. Please note that if your address and name cannot be confirmed on the transaction screen, we may need to ask for them.