I used these curtains for only two days after receiving them because I ordered the wrong size. They have been stored in the original packaging since then. These are highly-rated curtains on Nitori Net (4-star reviews) and are recommended for new lifestyles. ------------------------------ ○ They allow light to pass through while cutting UV rays, heat, cold air, and visibility. ○ Adjustable hooks allow you to adjust the length. (A-hook specification for beautiful drapes) ○ Light filtering: The room doesn't get dark even when the lace curtains are closed during the day. ○ Heat insulation: Blocks outside air and prevents the room's air from escaping. ○ UV cut rate: 93% ○ Heat insulation efficiency: 25.5% ○ Heat retention efficiency: 24.8% ○ They are processed to make it difficult to see inside from the outside. ○ Visibility level: Day 5, Night 5 (Nitori's visibility level. There are 5 levels from 1 to 5, and the higher the number, the more difficult it is to see from the outside.) ※ Visibility changes between day and night due to different lighting conditions. ○ Machine washable at home. □ Dimensional change rate / Vertical: -1.0% Horizontal: -1.0%