Specifications: engine: loncin carb 200f 196cc rated power: 4.1Kw horse power: 6.5 Hp start type: recoil cylinder bore x stroke: 68 x 54 mm shaft diameter: 1-3 8 35mm shaft length: 5ft vibration frequency: 5 000r min lock-on trigger: yes overall dimensions: 64 l x 3 w x 6 h package contents: concrete vibrator flexible shaft manual boost efficiency and precision on every pour with the stark usa handheld concrete vibrator a high-performance tool built for reliable concrete consolidation in both residential and commercial construction jobs. Brand: Stark USA Size: [6.5HP]