1. **Adjustable Size**: It is a lock ring wrench that is compatible with various specifications. (Please confirm the size before placing an order.) 2. **High Performance**: When repairing the fuel pump or fuel sensor, it can be used to remove and install the lock ring on the fuel tank. Using this tool can save time and effort when removing and installing these lock rings. 3. **Precautions**: Please confirm the shape of the lock ring. If it is a plastic cover type, this tool may not be applicable. If it is a lock ring with holes, this fuel pump lock ring tool can be used. 4. This is an adjustable fuel tank cap sensor unit fuel pump removal tool suitable for 5 - hole and 7 - hole situations. 5. **Features**: It has a 1/2 - inch drive or can be used with a No. 21 wrench. 6. This tool is suitable for removing 5 - hole and 7 - hole fuel tank caps. 7. It is useful when replacing the fuel pump and sensor unit. 8. **Applicable Vehicle Models**: It is applicable to [specific vehicle models are not listed in the original text] etc. 9. **Applicable Size**: 135 mm - 185 mm. 10. **Color**: Black and silver. 11. **Material**: Carbon steel. 12. **Package Contents**: 1 fuel pump removal tool. 13. Only the above - mentioned package contents are included, and other products are not included. 14. **Note**: Light reflection and different displays may cause slight differences between the color of the item in the picture and the actual one. The allowable measurement error is +/- 1 - 3 cm.