Gastone Folding Trolley by Kartell. Gastone is an elegant and practical folding trolley with varnished plastic top surface and chromed steel support. It is available in fi ve shades: white, black, blue, plum and cream. The castors are a formal feature and ensure functional mobility. Once closed, it has a depth of 9 inches, and can be easily folded away.Gastone Folding Trolley are designed by Antonio Citterio with Oliver Löw.