Guardian Angel Child Safety Window Guards, 4 Bar, 35-58 Inch Expansion GA3558-44. Box of 2. Guardian Angel window guards for child safety or dog safety. Child proof windows all window except for awning windows. Add guards as needed mounting bar ends mean no more than a 4 inch opening between guards. Each 3558-44 bar safety window guard expands from 35 to 58 inches horizontally or vertically. Guardian Angel window guards are egress escape window guards designed for safety not for home security. Stack if you need more than 22 inches of protection. Mix and match 3 bar, 4 bar and 5 bar window guards to meet your needs. Mounting bars butt together so that the open space is no more than 4 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 level where 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. Guard height or vertical guard width 21 3/8 , about 3 This item ships from a separate warehouse and may require extra time for delivery.