Save Energy & Money - This door curtain is made of a waterproof Oxford cloth outer layer and a cotton-filled inner layer, providing excellent thermal insulation properties. In winter, it effectively prevents cold air from entering your house, while in summer it prevents hot air from entering, creating a comfortable living environment all year round while saving energy and money. Fits Door Sizes 100x210cm - The size you purchase is for the curtain, not the door. The Velcro is 4cm wide at the top and 2cm wide on the left and right sides. Please measure the inner diameter and height of the door before purchasing. Choose a large curtain but not a small one, but the final size should not exceed the limit or exceed the door frame, otherwise the Velcro cannot be glued to the door frame. Easy to Install & Remove - Installing our door curtain couldn't be easier. Simply attach it to your door with the included adhesive velcro strips, no need to drill holes, so the process can be completed easily and in minutes. Wide Application: Ideal for keeping warm in any room of the family in winter, such as balcony, bedroom, kitchen, children's room, air-conditioned room, greenhouse doors, main entrance doors, front doors, back doors, patio doors, etc, good for windproof offices and shops. Automatic Closing & Hands-Free: The edges of the door curtain contain hidden magnets that allow for easy opening and closing. This feature ensures convenient access for both pets and children, who can move freely and unhindered in the doorway.