Product Description Screen retaining spline is the glue that holds a good screening project together. Pairing the correct spline size and color will ensure your screens go in smoothly and look great. ADFORS offers a wide variety of screen retaining spline to meet the need of any job, large or small. From the Manufacturer .125x100' Black Spline For Window Screens. Easy to stretch and fit into screen frame channels; bulk size of 100' for multiple windows and doors. 0.125 inch x 100 foot Secures screen into frame channel Easy to use Can be used with all types of insect screening This spline is suitable for l for screens such as ADFORS Pet Polyester Screen, ADFORS Solar Screen, and ADFORS Aluminum Screen when working with when working with a 5/16 x Frame