Additional Product Information Kw 0.8, no collecting blade, Twist handle provides additional comfort by allowing the user to quickly lock the rear handle in one of five different positions. S-Start reduces the amount of pull-force required by 50%. Vibration and Sound Pressure Level (EU model) Testing and average are made according to CE Regulations. Column 1 Model Number. Column 2 Vibration Level (m/s2). Last column Sound Pressure Level d/b (A)