Quick And Easy To InstallThe Lock And Keys Come With A Mounting Pad To Protect Your Fragile Glass, And You Don'T Need To Drill A Hole, So Installation Is Quick And Simple. It Slips Easily Over The Edge Of Your Glass Door.Unique Key SystemKeys Are Unlike Each Other And Are Individually Unique To Each Lock. This Key System Fits Glass Door Up To 5-8Mm Thick, Easily Attaches To Most Retail Display Cases.Protect Your CollectiblesIf You Have A Beautiful Antique Or Vintage Tea Cup, Or Other Collectables, You Can Use This Lock To Protect Them From Kids, Guests Or Other People, So Nothing Gets Damaged, Lost Or Stolen.Ideal For Retail StoresThis Lock Is Perfect For Retail Stores And Home Applications. Any Retail Establishment With Storefronts Will Find This Security Lock A Great Addition To Their Businesses.Service: If You Are Not Satisfied With The Product, Please Contact Us Directly, We Will Provide You With Service. Reimbursement At Any Time.