Thank you for looking. There are scratches and dirt as the item was used by a child. 10 curved rails, 12 double-curved rails. I'm not sure if the curved rails are outer curves or regular curved rails. Sorry. ◇ Please purchase only if you understand that this item has been stored at home. ◇ We are not responsible for any damage or deformation that may occur during shipping. Thank you. Brand: Takara Tomy Brand: Takara Tomy