This is a heat-reflective film for window screens that blocks infrared rays, the source of heat! I no longer need this as I'm using something else. How about it for the coming summer? *Please refrain from contacting me if you are prone to complaints or are overly sensitive. *Regarding price reduction, I can only offer a maximum of 100 yen off due to increased shipping costs. Thank you for your understanding. (＞人＜;) Please comment if you're interested. *Even if we are in the middle of discussions or negotiations, the item will be sold to the person who purchases it first. Please understand. *I have a child with a severe physical disability at home. Due to the season, they are prone to illness and may require hospitalization. Therefore, shipping may take some time. Please consider this before purchasing. *I am raising six children, and shipping will only be done on weekdays. I am sorry, but I cannot ship on weekends and holidays. I will ship within 4-7 days from the following week. I will contact you if there are any delays. I will strive to make our transaction a pleasant one. Thank you for your consideration.