Prime-Line S 4755 Fixed Window Guard, 31"-54"W X 15"H, 3 Bar, Black

Inside and outside mounting options.adjustable width. 3-7/8" bar spacing. meets nyc, nj and oregon home builders association health and safety building codes. segal brand. plain carbon steel tubing. one way tamper resistant screws included. note not for use in bedrooms or sleeping quarters where no other emergency exit window is accessible.