xeSynic Window Restrictor Locksx- - - - :The eSynic 6PCS Window Restrictor Locks is and Made of Aluminum Material Which Able to Withstand Greater Pressure, Provide Extra Security at Home and Baby/ Child Safety . x Easy to Used x- - - :The eSynic 6pcs Window Restrictors With Special Limitation Design 19cm Safety Cable Provides a 11 to 16cm Restriction and Make Fresh Air in, and Window Can be Opened Fully after the Cable being Removed for one end by Using the Key . xEasy to Installx- - - :This eSynic Baby Safety Window Locks Items Come with Self Drilling Screws and Keys and Just a Screwdriver or Drill to Install . xFitted to all Materials' Windowsx- - - :This eSynic Window Restrictors for UPVC Designs Fitted Most Types of Windows and Small Doors, Including Many Kind of Materials Such As UPVC, Wood, Aluminum and Metal Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.