Dual Revolving Hammers

Dual Revolving Hammers are an obstacle exclusive to Checkpoint 11. They have a central glass piece, with a metal bar extending from it. This metal bar has two glass bars at the ends going down, and they end in a metal piece. From this extends another pair of glass bars, and then these end in a metal cylinder. Their weak point is at the very top, exploited by the single balls. (Useful for when you lost your multiball).