These PinHole Protectors are custom fit for your White Water pinball machine.
 
White Water Pinball Boulder + VUK Protector set

Made of 1mm stainless steel, is really strong and really protect the boulders. Plastic protectors just looks good but dont protect enough from fast balls as White Water as known from.

The 2 boulders protectors have the right shape of the boulders.

The VUK protector is shaped to be under the two lane guides, it protects the wood from constantly be hit by the ball in the same drop spot.