Xiaheipi 4 Pcs Window Jammer Locks, Sash Blocker Jammer, Door Restrictor Security Locks for UPVC, PVC, Doors, Windows, Home

【Superb Quality】The sash blocker window jammer is made of high-quality aluminum alloy, door and window lock durable, sash locks not easy to rust, and has a white paint finish, strong nails, thick lock body, sturdy for long time use. 【Easy to Install】The sash window jammers are suitable for all kinds of doors and windows, mark the position of the installation hole with a pen before installation, choose a drill bit, drill the hole at the marked position, and then fix the locks with matching screws. 【Safety Locks】The sash window restrictor locks can give your home an extra layer of protection, is an ideal solution for home security. The window buckle including pad, which can reduce friction between jammer arm and windows, protect your windows or door from being scratched. 【Widely Used】The t type window safety locks upvc door is suitable for opening doors and windows inside and outside doors and windows. You can lock or release the window sash jammers locks just by twisting the interference arm. 【Friendly After-sales Service】These security jammer locks can be used on doors or windows for extra door or window security. If you have any questions when you use our child safety window locks, please feel free to contact us, we will provide you with a satisfied solution., Manufacturer: DJJRX