The ID series lever handle is manufactured in accordance with a standardised design code for handles, which also comprises doors and takes sound insulation, health, safety and environmental factors into account. The handle and closing mechanisms are available in round or angular designs, and form a coherent ensemble. Particular attention has been paid to the quality, fit and tactile experience of the handle as the connecting link in the interaction. The uniform groove on the handle surfaces skilfully catches the light and reflects the high-quality manufacturing.