ITEM NAME:16" Guide Bar 3/8LP.050 55DL fit for STIHL 017 021 023 025 MS170 MS180 Chainsaw 16" Guide Bar 3/8LP .050 Gauge Fit for STIHL 017 021 023 025 MS170 MS180 Chainsaw 55 DL SPECIFICATIONS.(Compatible With: fit for STIHL 017 018 020 021 023 025 MS170 MS180 MS181 MS190 MS191T MS192T MS200 MS200T MS210 MS211 MS230 MS250 Chainsaw. 2) Perfect match for the original one. Condition: 100% new.