[shock-absorbing and non-slip air conditioner stand]:Window Air Conditioner Mounting Support Bracket can Relieves weight stress on your window frame A properly installed air conditioner window bracket Minimize the risk of damage to your window, exterior wall or siding with the universal window air conditioner support bracket. [Adjustable Leg]: design of the leg extender allows you to freely adjust the length of the support arm , which well adapted to the different outside wall, relieved weight stress on window frame [Diy window ac support bracket]:Window ac mounting bracket works on most single- and double-hung (the kind that slide up and down), Not every A/C fits every type of window. Determine whether your window is sliding, [A/C Safe Air Conditioner Support Bracket]Indoor Installation,this diy window ac support bracket Easy Installation, No External Work Required, The Entire Installation can be Completed Indoors, Need to Drill 3 Holes in the Window Sill, Please check if the Homeowner Association allow you to drill holes on the window sill to install the ac holder window brackets. [Universal Design-air conditioner support bracket] Support any Window AC Unit up to 165lbs, Adapt to the Space of the Window Sill Thickness , Suitable for Ordinary Single/Double Hanging with Window Sills, Usually Suitable for Brick, Cement and Wood Window Sill , Not Suitable for Hollow Aluminum Window Sills. [brackets for window ac units]Prevent your AC from falling out of the window and injuring someone! The idea of AC plummeting to the ground isn't a pretty thought. Colour:Photo Color Material:Steel Package Contents: 1x AC Safe Support Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.