This is the famous F.T.L. Key used throughout the Battlestar Galactica series. This key is used to activate the Faster-Than-Light drives on the ships as they travel on their journey to Earth. This is a custom-made prop machined entirely out of aluminum with two LED-Lenser Flash Fire personal lights installed in it. It can be dis-assembled by removing a screw on the back and taking the lights out to replace the batteries.The first screen shot is the FTL key seen on the Demetrius in Season 4, Episode 6 'Faith' when the crew is about to mutiny against Starbuck. The second shot is Starbuck using the FTL for Galactica's final jump in the series finale 'Daybreak'. It also makes an appearance in the mini-series and Season 3.
