This tension-mounted roller screen doesn't require drilling holes in the wall, so it can be easily installed in rental properties. It opens and closes easily with a chain operation. The size is 1696x1795, and it is non-遮光 (non-遮光 means it doesn't block light). [Product Name] Slim Tension RS Non-遮光 Chain Type Right/R Ivory - Product Name: Tension Roller Screen - Operation Method: Chain Type Purchased from Bikkuri Carpet in May 2021. Thank you for looking.