1. It is brand new and has good durability. 2. It is suitable for all HollowGram chucks and link settings. 3. It is used for Cannondale HollowGram SL2 crank bolts to install the crank arm to the spindle. 4. Compatible cranks: It is suitable for Cannondale HollowGram SiSL2 (KP251/), and also suitable for HollowGram Si and SiSL. 5. It has high wear resistance and good durability. 6. Wrench: A 10mm hex wrench is required (not included in the set). 7. Weight: 6 grams. 8. Maximum torque: 40 N·m. 9. Color: Black. 10. Material: Aluminum alloy. 11. Contents of the package: - 1 screw - 1 washer 12. Only the above package contents are included, and other products are not included. 13. Precautions: - Due to the shooting light and different displays, the color of the items in the picture may vary slightly from the actual product. The allowable measurement error is ±1 - 3 cm. 14. About shipping: All goods will be shipped within 3 working days after receiving the payment. In most cases, you may receive the goods within 8 - 12 days. The specific delivery time depends on the actual situation. 15. If you have any questions, please feel free to contact us. 16. If you have any problems during the shopping process, please feel free to consult us. We will try to reply to you within 24 hours. Wish you a pleasant shopping experience! 17. Thank you for your cooperation. We will strive to make you satisfied.