bridges with spacers between the slats are not safe, as chin toes and legs can get caught much too easily. if you have your heart set on a suspended bridge like that for your chin, i would get one that is just slats butted tight to each other, and no spaces.
what i would suggest is the rainbow squiggle bridge from Camphor Chins. you can get a 27 inch one or a 40 inch. I believe they come with hardware for attaching to the cage too. not sure if they'd work for suspending across the cage, but along a cage wall would work just as good!