COP (Cyclo-Olefin-Polymer) syringes are distinguished by a high degree of break resistance, glass-like transparency and very low oxygen permeation compared to other plastics. They can be used directly for aseptic filling. COP releases no alkali ions, which means that the risk of a pH value shift is elimimated. Production with injection molding process enables flexible designs - even customer-specific designs are possible. In comparison to glass more precise production tolerances are possible thanks to the exact injection molding. This makes a higher degree of customized solutions possible, for example, when a lower remaining volume is required.