Bamboo is not only a highly sustainable material, but it looks fresh and appealing too. This is one of a series of 5 gift sets that pair up a bamboo keyholder and pen with metal trims.keyholder: 5 ( l ) x 2.5 ( w ) x 0.4 ( h )bamboo & zinc alloy with polished nickel platingball pen: black German inkbarrel: natural bamboo • trims: chrome-platepresentation box: 16 ( l ) x 12.4 ( w ) x 3 ( h )