The fleet consists of about 200 trams, of which 155 are Combinos (types 13G and 14G) from Siemens. Older trams, types 11G en 12G built by La Brugeoise et Nivelles, operate on lines 5, 19 and 24. The latest trams that GVB has received are type 15G trams from Construcciones y Auxiliar de Ferrocarriles which run on line 25. Trams of types 11G, 14G and 15G are bi-directional for use on lines 5 and 25 which have terminals without turning loops. All other tram lines have turning loops and use unidirectional trams. Lines 25 (Amsteltram) and 26 (IJtram) can operate trams coupled in pairs; both lines run in a right-of-way mostly separated from road traffic.