Package of 4 Expandable Window Guards, GA3558-44 from Guardian Angel Guardian Angel window guards child proof windows such as casement windows, slider windows or double hung or single hung windows. Shorter mounting bars let you butt two or more units together so there is no more than a 4 inch opening between guards. Vertical coverage of bars is 22 inches. Each 3558 4 bar guard expands from 35-58 inches. In an emergency, an adult or older child pushes button locks near the mounting bars to remove guards. Window guards remove easily from inside or outside a window. Each year in the USA, over 15,000 children fall from open windows. Many die or suffer serious injuries or death from landing on concrete or other hard surfaces. 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 levelwhere a child could fall or climb through an open window. Window screens are not strong enough to keep children safe from window falls. Guardian Angel Window Guard Features Low-profile appearance. Guards telescope to fill the space and snaps into mounting bars Tested to withstand up to 150 pounds of pressure in locked position. Quick 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. Remove window guards from inside or outside the window. Bar spacing of 3 7/8 exceeds 4 to 5 safety standards. Horizontal guard height or vertical guard width 21 3/8 , about 3 higher than most brands when installed mounting bars are installed correctly. Side posts anchor with 2 sheet metal screws into solid stud or frame mats.. Combinations of 3, 4 or 5 bar window guards stack for larger window openings. For example, butt the mounting bars togethe This item ships from a separate warehouse and may require extra time for delivery.