The Roller Arm Stay is designed for bottom-hung, inward-opening windows, hanging vertically when the window is closed so that it does not project into the room. As the window opens, the stay pivots outward, supporting the casement as it falls inwards and preventing the sash from dropping. It allows the window to open to a fixed distance equal to the length of the stay, ensuring controlled ventilation. With its versatile design, this stay is suitable for both modern and traditional interiors.
