Features Sander is with light weight, high stability, fast speed and high strength, supports wear resistance for long service life. The double rotation grinding method makes the polishing effect more uniform and smooth. Built-in adjuster of the sander allows you to adjust the working speed to meet different requirements for grinding, polishing and waxing. Sanding machine can be operated with one hand, while providing the best performance, greatly reducing operator fatigue. Entitled with practical adoptability, polishing machine's high quality can keep its high performance for a long time, and it is durable. Feature: 1. Sander is with light weight, high stability, fast speed and high strength, supports wear resistance for long service life. 2. The double rotation grinding method makes the polishing effect more uniform and smooth. 3. Built-in adjuster of the sander allows you to adjust the working speed to meet different requirements for grinding, polishing and waxing. 4. Sanding machine can be operated with one hand, while providing the best performance, greatly reducing operator fatigue. 5. Entitled with practical adoptability, polishing machine's high quality can keep its high performance for a long time, and it is durable. Specification: Item Type:Polishing machine Material: Alloy Working Pressure: 220pa Noise Level: 70-75 dB Grinding Disc Size: 2 inch / 3 inch No-Load Speed: 2500rpm Air Consumption: 4cfm Intake Port: 1/4 Package List: 1 x Pneumatic Polishing Machine 1 x Sanding Pads Replacement  1 Set x Mounting Part 1 x Instruction Manual Package List 1 x Pneumatic Polishing Machine 1 x Sanding Pads Replacement 1 Set x Mounting Part 1 x Instruction Manual