Knapp Connectors' Klick system is a set of three separate connectors that can be combined according to the application needed. With all of the connectors within the system being non-visible and self-tightening, the company says the Klick system is capable of adapting to a wide range of applications. The system includes non-visible, snap-in connectors for components with small dimensions; a connector that sits in a dado or rabbet and serves as an adapter; and a custom Klick dovetail router bit.