We are offering wooden dynamic trolley. Abbomedtm a pair of identical wooden trolleys (300mm long), mounted on three wheels. A spring loaded rod is fitted to give impulse when released. It has a provision for stacking the trolleys on top of each other with removable pins. Supplied complete with 3 elastic rings, 3 springs, 8 pins (for stacking), 2 rubber corks 2 needles and 1 releasing pin.