G.R.I.’s Alarmed Window Bar will fit windows from 26" to 38" wide and up to 14" high with no cutting required. If window is higher than 14", two or more kits may be used. The WB-26-38 protects both sides of a sliding window whether open or closed. Windows can also be opened and closed normally without triggering an alarm and can be connected to a 24 hour zone.