HDS Series trolley suitable for HDS models. Stacking Info: HDS 1.1 = 60, HDS 1.2 = 30, HDS 1.3 = 30, HDS 1.4 = 40 HDS 2.1 = 30, HDS 2.2 = 15, HDS 2.3 = 15, HDS 2.4 = 20