Safety with double insulation handle improves electrical safetyEnsure a safe user experience Variable speed one finger can control the speed switching which can meet all your needs when using the polisher Convenient to use both are ergonomically designed for comfortable operation for a long time D handle can easily provide enough pressure on the surface for the best polishing effect Flexible Splash Guard with a waterproof safety cover can protect you from electric shock. Can adapt to changes in height of tools, Manufacturer: POAHNCU