Features: new and high quality Flexible shaft transmission, because the steel wire core of the flexible shaft rotates at highly speed in the flexible shaft sleeve, highly speed friction will make the inner wall of the flexible shaft heat. Highly the rotating speed, the more severe the discount of the flexible shaft will be, and the more intenses the heat will be, which will easily burn the outer sleeve of the flexible shaft. Don't use flexible shaft drive for polishing for a long terms, and stop for a rest every 10-15 minutes. Try to reduce the bending degree of the flexible shaft in use. Don't overloads the shaft, which will aggravate the friction and heat generation of the flexible shaft. After a period of use, drop some engine oil along the flexible shaft for lubrication and heat dissipation. Do not disassemble the flexible shaft frequently after it is connects with the electric mill body. Specifications: Material:Stainless Steel+Plastic Length:Approx.105cm/41.33inch Package Includes: 1x Flexible Shaft Extension Adapter Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. _x000D_