Huge hug! I bought this to add to my train set for my church nursery and the little boys (only have two little boys at the moment) love to play with it! They love to lower the arms and then raise the bridge and are wondering if they don’t lower the arms will the trains crash and fall? Might be next week’s experiment! Because it is new it is hard for their little fingers to turn the knob that lifts the bridge so that had become my job! Highly recommend this bridge!