Since 1952 General Plastics have devised and produced, strictly in Italy, all sorts of containers, special caps, plugs, droppers, vials for pharmaceuticals and for other purposes. The General Plastics system consists of 3 components: a reservoir plug that closes a single-use bottle containing liquid or syrup; a piercing plunger having a sharp end which allows for the reservoir bottom to be broken, a security cap which closes and seals the whole system.