The FSB 66 6635 door handle design was the first product in FSB's oval series. The aim was to align a non-slip oval tube (Ш 40 x 28 mm) ergonomically so that the hand could grip safely and efficiently. This aim was achieved by mitre welding the handle and supports at an angle of 90°. This provided a counterpoint to the soft bends of the handle design in round tubes. The new design idea impressed the market straight away.