RaceQuip Ribbon Window Nets are constructed of heavy-duty 1" polypropylene webbing and nylon thread for maximum durability. For over a decade, Safe-Quip has utilized jig-built construction techniques which ensure consistent size, shape, and fit. Available in black, red, blue, yellow, orange, purple, silver and green. Our standard size is 18"x24" which will fit most window openings. Five new sizes now available. All meet or exceed SFI 27.1 specifications.