Addtional Extra Security to Your Home. This sliding door lock designed to offer additional home security from a patio door or sliding window, provide peace of mind at night to keep everyone safe in side, use this when you leave home when you travel, also peace of mind for when you are gone Security and Safety for Kids. Our security door lock is great to put on sliding door that leads to the pool, and vinyl sliding glass patio door, no more worrying about if the little ones open the door run outside, and head for the pool when you weren't looking Easy to install and 2 Ways for Installation. You can put this lock on the top of door to prevent the toddlers opening the door by themselves. Add it on the bottom of sliding door or window, you can lock or unlock by your foot, so you no longer have a bend down to lock or unlock your patio door 2 Positions to Lock. Our patio door lock designed 2 positions to lock your sliding glass door or window, so you can leave the patio door or sliding glass window slightly open and still lock it Risk Free Shopping. Our security door locks made of long lifetime material, and durable, so that it stays with you long times, or we’ll replace it hassle-free at no charge to you, Weight: 0.6 Pounds, Manufacturer: SDGINA