DIN is a series of ball knobs for drawers, cabinets, and light doors. The fittings are made of stainless steel with a machined ball in polished Duraplast. They are available in two versions: straight and angled. The knobs can also be mounted as wall hooks using an M5 dowel screw.

Their generic form and material expression make them well suited to both modern and historical environments. The series was originally developed for various projects designed by architect Johannes Norlander.