Features: Soft shaft use, soft shaft transmission. Due to the highly-speed rotations of the soft shaft steel wire core inside the soft shaft sleeve, highly-speed friction will cause the inner wall of the soft shaft to Heating. The highly the speed, the more severe the soft shaft will be folded, resulting in more severe heating and easy damage to the soft shaft sleeve Suggestion: 1) Do not use soft shaft transmission for polishing work for a long. Stop and take a break every 10-15 minutes of use 2) Try to minimize the degree of bending during the use of the flexible shaft and maintain transmission as much as possible 3) Do not operate under overloaded to increase the heat generated by the friction of the soft shaft 4) After using it for a period of time, drips some engine oil along the flexible shaft for lubrication and heat dissipation. After connecting the soft shaft and the electric grinders body, do not disassemble it normally. 105cm in total length Specifications: Material: Steel Length：about 105cm/41.34in Package Includes: 1Set Electric Grinding Accessories note: Due to the problem of lighting effectsand shooting, there mightbe certain tolerances in product, please understand. Please allow 0-1cm error due to the manualed measurment.