Valianto Air Random Orbital Sander 5" Dual Action Palm Sander, 2.5mm Eccentricity Pneumatic Sander Lightweight and Low Vibration With Speed regulation Packaging Includes-----1Pcs 5" Air Sander (5/16 x 24 thread Hook & Loop Pads)/ 1Pcs wrench/ 1Pcs Quick Connector Controllable Speed and High Efficiency-----Built-in regulator for speed control, easy to handle and Can be operated with one hand, highly reduce operators' fatigue while delivering the best performance, igh Speed and Powerful, universal sanding machine, Free speed Can reach 12,000 revolutions per minute, 90 PSI Air Pressure, high strength shorten your working time improve efficiency Double Rotation Polishing Technology-----Double rotation grinding method to make the polishing effect more uniform and smooth Low Vibration-----Valiantos Dual Action Pneumatic Sande, 2.5mm eccentricity, Light weight, low height, Precision balanced motor operates smoothly for greater comfort and control, reduce vibration, provide excellent performance VARIED APPLICATIONS-----This dual action sander is ideal for auto body, furniture,wood, metal products, widely used for sanding, grinding, polishing and waxing and cutting, etc.