100 Pack, 3/8", Non-Metallic Push Connector, For Indoors Only, Fits Non Metallic Cable: #14/2, #14/3, #12/2, #10/2 & #10/3, Snap In, No Screws Or Locknuts Required, In A Dry Location Use To Connect Non-Metallic Sheathed Cable To A Steel Outlet Box Or Other Metal Enclosure, Fits 1/2" Knock Out, : Quick & Easy 2-Step Installation, Push Into Box & Insert Cable.