London, July 22 - Actress Sandra Bullock's ex-husband and motorcycle entrepreneur Jesse James says he will "walk through fire" for his children.

James continues to battle over the custody of his daughter Sunny and appeared in a courthouse Friday for a final hearing of a custody trial.

Even though James won full guardianship of the little girl in 2009 from ex-wife Janine Lindemulder, he was present at a necessary final hearing, reports contactmusic. com.

He tweeted along with a photo of court papers: "Sitting in court today is a reminder that being a dad isn't always making the easy decisions, but making the ones that are right for the long haul."

He added:"There is no doubt in my mind that I would walk through fire for my kids. My lifelong mission is to guarantee that they are happy, healthy and safe." (IANS)