The DIN 319 ball knobs are jointless and polished.
Material
Bushing
Steel, zinc-plated by galvanization
Brass
Ball
DIN 7708 - thermosetting plastic (PF 31), black similar to RAL 9005
DIN 7708 - thermosetting plastic (PF 31), red similar to RAL 3003
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.