1 Pack Childproof Window Restrictor for Aluminum, Wooden, Metal Window Frames, Baby Safety Window Lock, Window Safety Locks for Toddlers & Pets, Easy to Install (Grey)

【 Ventilation & Adjustment】---Our window restrictors are adjustable and can protect children while meeting the function of ventilation., There are two different opening sizes to choose from, 3.62"" (9.2cm) and 5.31""(13.5cm). Press and hold the slider button on the pole to push or pull the window, achieving the adjustment of the opening size for windows., 【Why Need It】---Prevent babies from pinching their hands by opening and closing windows without the supervision of adults;, prevent babies from climbing on windows; prevent toddlers from accidentally falling out of windows. It is effective not only for babies but also for pets., 【Universal & Durable】--- Made of PA66+GF20 material, window restrictors are strong and durable with two parts.