The AHM HO Scale 16951 PTC Power & Dummy Non-powered Trolley's Set are model trolleys in 1:87 scale, made of plastic and featuring a yellow and green color scheme. These dollhouse-sized replicas are designed to run on HO scale model railroad tracks and are imported from Japan. Perfect for model train enthusiasts, these trolleys add a realistic touch to any train layout, with the non-powered dummy trolley giving the appearance of a train without the need for electricity.