Stick in the needle. Give it a few brisk pumps. Out comes the cork. How ingenious is that? Simple and easy. Weve done the T-handle cork screw pull like crazy till the cork screw breaks and hits ya in the mouth. Weve done the twist the center screw and push the 2 arms down and the cork center pulls out because the screw is just plain too small. Weve done the electric rechargable wine cork puller but it dies when the cork is half pulled out, and ya gotta unwind the darn thing then use the old T-handle manual puller to MAYBE get the cork out.. sheesh.. weve got a drawer full of cork removers. All promising to be the NEXT BEST THING in wine cork removers.. so yes, we had to try this one too, pretty much expecting the same lame outcome. But, guess what? This Wine Bottle Opener Injector Pump actually WORKS! No getting smacked in the face, no dead screw motor in the middle of pulling a cork or the darn thing is just plain dead from sitting in the cabinet , no putting the bottle between your feet and getting a hernia trying to pull an insanely stuck cork out then finally getting it out and the bottle flicks over on its side on your brand-new living room carpet. We bought 5, gave the extras away to some of our friends, bought 6 more and gifted those too.. all we can say is thank you. The last wine opener well ever need..