Our Standard Pass and Seymour Combination Switches Allow You to Add Lights to Any Room In Your Home Without Having to Add or Replace Wall Boxes. This Tamper-Resistant Version Features A Dual Mechanical Shutter System to Help Prevent The Insertion Of Foreign Objects, Making It Much Safer and More Convenient Than Plastic Outlet Caps. For Detailed Tamper-Resistant Receptacle Information, Visit Our Tamper-Resistant Receptacles Page.