The Stihl 41387107106 Protective Tube Complete HT is an authentic OEM replacement part designed for various Stihl HT series pole pruners, including HT 101, HT 103, HT 131, HT 133, HTA 85, and HTA 135. This complete assembly ensures the protection and proper function of the drive shaft, contributing to the longevity and reliable operation of your equipment. It is engineered to meet Stihl's rigorous quality standards for a perfect fit and optimal performance.