Evans Looking Glass?

[tryggdahl]

What are these all about? I read Neil Peart used them in the 70's? Are they even still in production? I'm an Aquarian guy but these have my interest.

[wolfmoon]

Evans Looking Glass???? If your talking about Hydraulics, yes. They are still made today.

http://store.daddario.com/category/148378/Hydraulic_Glass_Drumhead