Thank you for viewing. This is a stainless steel barn door sliding door lock. Product Specifications: Material: Stainless steel Color: Black Product Introduction: 【Excellent Stainless Steel Material】The construction itself is solid and very sturdy, with a sense of weight, an exquisite and stylish design, excellent durability, and theft prevention. It is a small, sturdy, and practical lock, and the entire door lock is waterproof and rust-proof. It can be installed outdoors or in bathrooms, where it may get wet. 【Door Lock 180 Degrees】180-degree flat angle safety lock. Since it cannot be opened from the outside, it can be used as a substitute for a doorknob. Use it to lock the sliding door in the living room. 【Screw Fixation】Set of 4, can be installed by screwing only. Since it is fixed with screws, it is not suitable for those who do not like to make holes, but it is highly recommended for those who do not mind making holes. 【Easy Installation】It is easy to use and very useful, and the installation is also easy, and the lock opens and closes very smoothly. The construction is easy and user-friendly, and the door closes firmly. It might be good for crime prevention to attach two to one door. It is suitable for students and single people while protecting privacy. It is a safety lock for crime prevention measures. Door lock retrofit sliding door lock 90 degrees / 180 degrees inside key with screws interior door key retrofit room key retrofit right angle lock stainless steel door latch sliding door entrance door key door key crime prevention auxiliary key additional key door lock easy to install theft prevention earthquake resistant privacy protection black - 180° flat angle