Concrete skip of cylindrical/conical shape, with straight outlet and hose coupling. Commands for opening and closing discharge valves and for the external vibrator are given by means of a radio control system with a range of 600m. The opening mechanism is operated via a hydraulic cylinder. The concrete skip is built in conformance with official labour safety regulations. Safety requirements, such as automatic closing of the valve in the event of malfunctions or range violations, are met.