The product was opened in a sealed state, but it was never used because it was not compatible with my road bike. * 1.2 inch (30 mm) shaft Please check the BB standard of your frame. This product is a genuine import product with quality assurance, so you can use it with confidence. ( Excluding parallel imports) Product specifications, specifications, designs, etc. are subject to change without notice. Thank you for your understanding. We cannot accept returns.