1. A pusher for moving the substance in the syringe towards the dispensing tip, comprising a pusher rod and a seal for creating a mutual seal between the pusher and the syringe, wherein the pusher is made of a plastic composition containing a polymer and a filler distributed inside the polymer, the filler being distributed with the first the relative filler content by weight in the plunger rod and with the second relative filler content by weight in the seal, and the first relative filler content Itel is higher than the second relative filler content. 2. The pusher according to claim 1, characterized in that the first filler content is from about 20% by weight to about 60% by weight. The pusher according to claim 1, characterized in that the plastic composition has a total filler content of approximately 50%. The pusher according to claim 1, characterized in that the pusher rod is extended, while having a generally circular cross section along the axis of the pusher, and the seal protrudes from the pusher rod in a circle around the axis of the pusher. The pusher according to claim 4, characterized in that the axis of the pusher is extended as a whole in a straight line. The pusher according to claim 4, characterized in that the pusher rod comprises an annular groove around the axis of the pusher, and wherein the seal protrudes from the pusher rod in the groove region. The pusher according to claim 1, characterized in that the seal has an annular free edge and tapers from the rod of the pusher towards the free edge. The pusher according to claim 1, characterized in that the pusher has a rear end, which contains a pressure plate for the finger and is locatedПредлагается толкатель для подачи вещества в шприце к дозирующему наконечнику. Толкатель имеет шток толкателя и уплотнение, и сформирован из пластического состава. Пластический состав содержит полимер и наполнитель, неравномерно распределенный внутри полимера, для формирования штока толкателя и уплотнения, имеющих