Measuring 17cm with 2cm extension, these beautiful Titanium with rose gold IP bracelets would suit older girls and adults.  What is rose gold IP? "To begin with, a layer of titanium nitride is added to the base surface of stainless steel. Additionally a final plating metal (in this case, rose gold) is added to the surface; the thickness of this layer is no more than 0.3 urn. ... Given its durability and chemical stability, ion plating is considered permanent for the average life of a piece of jewellery."   Also available in polished titanium.