Hi, even if i made a mistake and it wasnt a shimano saddle, I offerd you the opportunity to check the specs of the saddle when we met up to deal in person. If you did not want to buy a off brand saddle , you should have pointed out earlier that it wasnt a shimano product like u thought it was and decide not to follow through with the deal.Instead you agreed to follow through with the deal.Please learn to properly check the check the brand and specs of a product before you buy something