[High Quality Material]: Made of high quality stainless steel, anti-corrosion and rust, good quality, high safety factor, high anti-theft and durable. Cylinder Advanced Atomic Lock Cylinder: The design of the advanced atomic lock cylinder has good strength and high quality. It is more reliable than ordinary roller shutter lock cylinders and has high security performance and excellent anti-theft performance. [Indoor and Outdoor Design]: The design has a modern style. It can be locked and unlocked both indoors and outdoors. You can unlock and unlock it whether you are indoors or outdoors. The design is very user-friendly and meets your needs. Easy Installation: Just install the lock in the corresponding hole with screws and tighten the screws to complete the installation. It takes about 10 minutes to install and then it is anti-theft for a long time. Effect: [More information] Color: Black Included in delivery: 1 x garage door roller shutter lock