Replacing OEM numbers : 1123 160 5400, which is a direct replacement for the old or broken one. Compatibility: This product is compatible with STIHL 017 018 MS200T MS193T MS192T MS250 MS230 MS180 MS170. Easy to install: Direct replacement without adjustment, perfect compatibility and high reliability. Product material: This product is specially designed and made of metal material, with high service life and not easy to damage. Product list: Product include a total of 2pcs Chainsaw Brake Band, which can completely meet your daily use needs and replacement., Manufacturer: EMSea