[Premium Material]:The Window Lock is made of stainless steel material,precision casting,sturdy,longer service life [Application]:Window Limit Stopper can control the window partially open or closed so as that ensure kids,and keep curious toddlers and children away from window,doors,etc [Simple Installation in Seconds]:Easy to install,with simple additional tools [Essential Nice Helper]:Window Lock Stopper is suitable for families,bedrooms,kindergartens,offices,hotels,schools,and girl travelers.Protect the kids,elders,and even pets in your family [Micro Ventilation Design]:The Window Restrictor allows for micro ventilation,ensuring indoor air circulation while preventing excessive opening of window for increased safe