Portable Concrete Vibrator Features & Benefits: 4-stroke engine, air-cooled Throttle control unit built into the handle Fully adjustable handles Comes with adjustable carry strap FREE 600ml fuel mixing canister Lightweight and portable 45mm diameter vibrator 1 litre fuel tank capacity Durable construction No separate power supply required This lightweight and portable concrete vibrator is ideal for vibrating concrete with a 4 stroke engine and a flexible 45mm (diameter) vibrator shaft. It also comes with fully adjustable Carry Strap, adjustable Throttle Control Unit and adjustable Handle. Every purchase comes with 600ml Fuel Mixing Canister absolutely FREE. The adjustable carry strap that comes with the machine greatly reduces the work fatigue and promotes the efficiency of product due to the adoption of center-adjustable bearing and the vibrating-counter spring.