 Hello everybody. Welcome to our first pre-filled syringe seminar. With the success of the pre-filled syringe in the marketplace, we have seen a strong need for education in this area, for this special packaging material and especially for the fill finish. Today, I want to introduce you to one of the most important processes on the machine, the stoppering. Here you see a stoppering station on our pre-filled syringe filling platform, the FXS, for fill finish of syringes. Here you see four elements, and I have them also here. You see the syringe itself, you see the vent tube, the stopper itself, and the plunger rod to push the stopper into the vent tube. There's a big difference to the vile stoppering. For the vile stoppering, you just place the stopper onto the vile. Here you need a vent tube, because if you do not have a vent tube, the stopper would either travel back or you would pressurize the syringe in a way that later when you open the syringe it would spill, or even the tip cap would pop off. You see here the rubber stopper is going into the vent tube and is compressed, and then the rod is pushing the stopper out, and the stopper is deflating and is sealing the syringe. So this is the basic version of closing syringe. In the next seminar we will learn about the vile stoppering. So if you find this video useful, please subscribe our channel and please write into the comments what is interesting for you, what you want to learn in the future. Thank you.