Features: HOME DOOR AND WINDOWSafety locks for household doors and windows. strong nails, thick lock body. sash jammer give your home an extra layer of protection, door and window lock Ideal solution for home security.window door lock Including anti-wear pad,sash window jammer can reduce friction between jammer arm and windows, protect your windows or door from being scratched. SAFETY AND CONVENIENTIt can prevent children from opening the window too large and causing danger, and also prevent children from opening the door to rummage things; It is not safe to open the window for air ventilation at night when the air is stuffy. It is safe and convenient to lock the window for air ventilation with auxiliary lock. WHAT YOU GET2 pcs jammers come with suffient corresponding fixing screws , knock on cover caps and so on. Providing additional security for your UPVC/PVC Doors or Windows. ALUMINIUM ALLOYThe sash jammer is made of high-quality aluminum alloy, durable,not easy to wear.White Powder Coated Finish,a good match with your windows and doors.Simple installation within minutesjust twist the interference arm to lock or release the window sash, fully ensuring safety. WIDE USEThese multifunctional sash jammers are suitable for doors and windows that open inward and outward, such as room doors, windows, bathroom doors or balcony windows,etc.Also a great security device for motorhome. Description: 1.The sash jammer is made of high-quality aluminum alloy, durable,not easy to wear. 2.It can prevent children from opening the window too large and causing danger, and also prevent children from opening the door to rummage things. 3.Window door lock Including anti-wear pad,sash window jammer can reduce friction between jammer arm and windows, protect your windows or door from being scratched. Specifications: Material:Aluminium alloy Color:Black,brown Size(about):6x3.7x2.3cm/2.4x1.5x0.9inch(LxWxH) Package Included: 2pcs x Door Jammer Window Lock Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.