Ideal for wooden , iron , and stainless steel door , this provides enhances protections without the need for visible keyholes Crafted from cold rolled steel , this motor combines strength and innovation , perfect for modern security needs on platforms This three power supply option batteries ( NOT Include ) , 12V external power sources , and USB port , making it to various setups This is suitable for both men and women who prioritize home security unparalleled security with our remote controlled anti theft motor , featuring a installation that prevents tampering and ensures peace, Manufacturer: ERRORY