Description: For Stihl 017 018 019T 021 023 025 MS170 MS180 MS210 MS230 MS250 MS270 MS190 MS190T MS191T MS211 MS270 MS280 MS311 MS391 Chainsaw Refer Part No.: 9638 003 1581 Material: rubber Size: approx. 1.5x 2.5x 6cm/0.6x 1.0x 2.4inch Package Includes: 20Pcs Oil Seal Note: Please allow 1-2mm errors due to manual measurement. Please be carefully check the goods appearance, size, shape and then compare your original goods before ordering, avoid items you buy that don't match your tools. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same