3M(TM) random orbital sander. Stikit(TM) pad included. Precision balanced for smooth operation. Takes dust management to the next level with powerful self-generated vacuum tools. Proprietary clean sanding system with improved filter bag. 5-inches tool diameter by 3/16-inches orbit diameter. Maximum resolution per minute: 12000. 0.28 horsepower motor. Measures 5-57/64-inchse length by 3-17/64-incehs height.