(This item sold as a pack of 2) Protect basement, garage, and house windows from break in's. Hinged burglar bars are constructed of 3 8'' solid steel bars and heavy duty welded channels. Finish is white enamel. Burglar bars are adjustable width of 24'' to 42'', and can be surface or recess mounted. Most models accept padlock (not included). Model No. 1132 does not accept padlock. Mounting hardware included. Child safety 3 1 2'' spacing between bars. No. 1133: 3 bar, 8 11 16'' crossbar height, 10 3 8'' overall height No. 1134: 4 bar, 12 1 2'' crossbar height, 14 3 16'' overall height No. 1135: 5 bar, 16 5 16'' crossbar height, 18'' overall height No. 1136: 6 bar, 20 1 8'' crossbar height, 21 13 16'' overall height