1/2/4PCS Push Window Child Safety Lock Adjustable Security Door Anti-Theft Lock Direct Sales Window Limit Protection LockDescription:Adjustable Window Safety LockMade Of Thick Iron Material With High Compressive Resistance And Durability.Rotary Switch To Change The Slot Distance At Any TimeAll Kinds Of Sliding Windows And Doors Can Be UsedKeep Your Baby And Family SafeSpecification:Material: Aluminum AlloyWeight: a hundred GramsSize: 6*3.5*3cmSpecifications:Adjustable Window Safety LockMade Of Thick Iron Material With High Compressive Resistance And Durability.Rotary Switch To Change The Slot Distance At Any TimeAll Kinds Of Sliding Windows And Doors Can Be UsedKeep Your Baby And Family SafePackage Included:1*window LockNotes:Due To The Difference Between Different Monitors, The Picture May Not Reflect The Actual Color Of The Item.Compare The Detailed Size With Yours, Please Allow 1-3cm Error Due To Manual Measurement.If There Is A Problem With The Product, Please Leave A Message Before Giving A Bad Review.Thank You For Your Understanding.