Childproof with Window Guards Keep children safely inside open windows, even very wide or very tall windows. This window guards expands from 58 to 90 inches and can be stacked side by side to protect sliding windows or casement windows. Or use to protect double or single hung windows when two window are in a single frame. The Guardian Angel 5890-44 has four horizontal bars and four quick release buttons to remove the windowguard from the mounting bars. That way you can easily wash the window. Childproofing windows with ASTM approved egress escape window guards by Guardian Angel is vital for home safety in homes that are multi-level or where windows are close to the floor. Guardian Angel II window guards are made from strong, steel tubing powder coated with a durable, lead-free white paint. For baby and child safety, install window guards on any window more than 12 feet above ground level, windows 2nd through 6th story, or at any level where a child could fall or climb through an openwindow. Window screens are not strong enough to keep children safe from window falls. Guardian Angel Window Guard Features: Deluxe, low-profile appearance. Guardian Angel is the leader in window fall prevention. Tested to withstand up to 150 pounds of pressure in locked position. Q uick release buttons for fast window guard removal in emergencies. Guards have 4 emergency release buttons. No tools or excessive force are needed to remove Guardian Angel windowguards. Window mounting bars have two inches from the ends of the mounting bar to the holes where the top and bottom bars lock. Remove window guards from inside or outside the window. Bar spacing of 3 7/8" : exceeds 4" to 5" safety standards. Horizontal guard height: 21 3/8", about 3" higher than most brands. Side posts anchor with 2" sheet metal screws into solid stud or frame mats.. Combinations of 3, 4 or 5 bar units protect openings of vertical windows like sliders and casements. Made in USA. Lifetime guar