Proper Dimension--The window screen spline size is 3mm/0.125 inch in diameter 262ft/80m long. It is long enough to meet your daily needs. -It is made of moderately hard plastic material which is tough not easy to deteriorate and durable and can be kept for a long time. of Cut--This roll of window spline is 80m long non-slip and wear-resistant equipped with a hollow core flexible and resilient easy to maneuver You can freely cut the length suitable for your needs. Easy to Install--Straight window screen is designed for easy of use it's simple to stretch and fit into screen frame channels simple and easy to install. Wide Application--Suitable for a variety of occasions including offices home office and more. You can also use it on porches patio sunroom screens pool fences screened gazebos it's a good choice for window and doors.