Concrete Vibrator Engine: RB20-A Vibration head: (Dia.) 28, 32, 38, 45, 50 or 60 x (L) 470mm Vibration: 9,800 to 12,000VPM Starting system: recoil starter Shaft rotate speed: 3,000rpm Amplitude: 0.8, 0.9, 1.2, 1.3, 1.6 or 2.0mm Flexible shaft length: 6m Packing size: Body: (L) 520 x (W) 380 x (H) 540mm Hose: (L) 870 x (W) 660 x (H) 80 Net weight: 14, 16, 18, 19, 20 or 21kg