Features: Made from aluminum alloy, it is solid and durable, has long service life. Available for wooden door, metal door, burglary-resisting door and glass door with frame. With stable performance and low power consumption. Built-in reverse current protection device. Waterproof, antirust treatment, chrome plated, safe to use. No residual magnetism after power failure. Descriptions: Using magnetic power to lock the door. Can be opened by push button, remote controller, etc No noise when operating. Specifications: Working voltage: 12V Working current: 3-5A Material: aluminum alloy Type: single magnetic lock Size:168 x 38 x 21mm/6.6" x 1.5"0.8" Color: silver Package Included: 1 x Electromagnetic Lock Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Please allow slight measurement deviation caused by manual measurement, thank you for your understanding.