The black plastic handle is a practical fitting for camlocks and quarter turn locks.
The key is often pulled as a handle to open the door. This habit exposes the lock to excessive wear and the key to the risk of breaking inside the barrel. The handle is an ergonomic solution allowing to open the door more easily and to safeguard the lock over time.
The round handle can be installed on all 19 mm camlocks, quarter turn locks and budget locks.