These sash balance take-out clips are constructed of stamped steel and come in a zinc plated finish. They are used with channel balance hardware, commonly known also as “block and tackle” sash balance hardware, and they’re used in both single hung and double hung vertically sliding windows. These clips lay flat against the vertical left and right sides of the vinyl window jamb legs, and they must be “popped” outward towards the center of the window when the sash needs to be removed from the frame. On a typical vertically sliding vinyl window, 2 take-out clips are required for each sash. These clips are simple to install and are used by many window manufacturers.