The STIHL 11432000339 Rollomatic E Mini guide bar is a genuine OEM part designed for optimal performance with compatible STIHL chainsaws. Featuring a cutting length of 400 mm (16 inches), a 3/8" P pitch, and a 1.3 mm (0.050") gauge, this guide bar accommodates 55 drive links. It is engineered for durability and precision, ensuring efficient cutting operations. This guide bar is suitable for a wide range of STIHL chainsaw models including MS 170, MS 171, MS 180, MS 181, MS 193, MS 194, MS 201, MS 211, MS 231, MS 241, MS 251, MSE 170, MSE 190, and MSE 210.