D-Cap is a double-sided disinfection cap designed for needle-free connectors that are widely used in hospitals. The cap is compatible with both ends of the connector. In this way, it provides a practical use and saves storage. When the connector enters the system, the disinfectant solution is exposed. The foldable plastic cover allows the open side to be closed. It provides an ergonomic grip with its triangular form. It also aims to minimise microbial settlements thanks to its flat surface.