Product Description This child fall window guard is constructed of 0.048 inch thick, plain carbon steel square tubing and comes in a white painted finish. These operable window guards are equipped with a quick-release feature for fast window guard removal in the event of an emergency which disengages with a distinct 3-step removal procedure that is designed to discourage toddlers from opening the guard (operable version only). These window guards should only be opened in case of an emergency, or if conducting a test on the release mechanism. The intended purpose of this type of hinged window guard is to assist in preventing children from accidental falls through open windows, while at the same time providing access through the window in the event of an emergency. These egress-compliant window guards (upon proper installation of each) are designed to be installed inside bedrooms and sleeping quarters, yet it is highly recommended that local building codes are verified to ensure the correct window guards are selected and installed for the safety of those inside. This window guard features a fully adjustable telescoping width (prior to mounting), and it comes complete with one-way, tamper-proof installation screws. This child fall window guard meets New York City and New Jersey’s housing codes, and it was approved by the New York City Department of Health and Mental Hygiene, HDWG #04-09-2010. For windows not requiring emergency access, Prime-Line Products also manufactures fixed versions of these window guards, like Prime-Line part S 4747. From the Manufacturer This 21 in. hinged window guard is constructed from carbon steel and comes finished in white. It features .048 thick square tubing and has a fully adjustable width from 31 in. to 54 in. wide. This type of window guard is designed for interior use only.