Easy Installation & Aging Resistance---Install the window restrictor with 3M VHB adhesive, no drilling or tools needed. 3M VHB adhesive with strong viscosity (the effect will be better after 72 hours). and can be removed easily without any residue, no harm to the window. Temperature resistant strip from -30 to 90, no worry about the heat of summer and the cold of winter.Ventilation & Prevent Baby Falling---Help to fix the window and meet the ventilation demand. The maximum distance of the opening window is 7cm, it is much smaller than the distance that babies will fall from the window. The window lock can bear 27kg of thrust and 30kg of tension, no worry about baby opening the window and falling. And also there is no worry about the window being closed by the window. Strong wind. Will not damage. window or scare babies. Innovative Design --- Compared with the window restrictors on the market, Eudemon window restrictors have no key, so there is no worry that the key will be lost and cannot open the window. The special detachable design makes it easy to change the position of the window opening to fix the window with a small distance. Waterproof and Wide Application Range: PC and ABS material makes it stronger and has a longer service life. Waterproof material and adhesive tape make you don't worry about rainy days. The window restrictor can be used on the casement window and the hinged window.Two PartsThe window restrictor consists of two parts, namely the lock and the lock plate.Easy InstallationInstall the window restrictor with 3M VHB adhesive, no drill and tools needed.3M VHB adhesive with strong viscous.Strong 3M VHB tapes have a temperature resistance of -30C to 90C, no worry about the hot summer and cold winter.Special Detachable DesignSpecial detachable design makes it easy to change the window opening position.If we want to open the window completely, we can just unlock the latch in two steps.VentilationSize 1: 2.76"(7cm)Help to fix the window and meet the ventilation demand.The maximum distance of the opening window can be 2.76"(7cm),babies will not fall out of the windows with this distance opening.Prevent your child from falling out of the windowThe window lock can withstand 300N (30KGS), no worry baby will open the window and fall.There is no worry about the window suddenly closed by strong wind which will not damage the window or scare babies.