The third Bronze Age design of fibula consisted of horizontal wire spirals. The spectacle fibula (brillen in German) consisted of two spirals joined together. It resembles a pair of spectacles or eye glasses. These fibulae, such as the Haslau type and the St. Lucija type, were found in the 9th to 7th centuries BC. Some spectacle fibula were very large with spirals up to 10 cm across. A variant that appeared in the 6th century BC had four small spirals with a square, or squarish, cover plate on the middle, the Vierpass type.