Wörterbuch (en): Folding yardstick / Folding ruler
de: 
Gleidermassstab (m) / Zollstock (m) / Meterstab (m)
fr: 
Métre pliant (m) / Règle glissante (f) 
it: 
Metro pieghevole (m) / Regola scorrevole
es: 
Metro plegable (m) / Regla deslizante (f)
A measuring instrument for the determination of lengths up to four meters, although the usual total length is two meters.
