Features: brand new and high quality Easy to assemble, in this electric hand training and convenient, dosage. Easy to mount on the electric drill and convenient for use. Great to replace the old or broken one of your drill. Made of high quality material, durable and long service life. Small body and it has stable performance. The speed is easy to adjust, press the switch button to start, reduce your press, the speed can be faster. Specifications: Material:Plastic Size:As Picture Shown Color:Black Package Includes: 1x Trigger Switch note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.