While maintaining flexibility, you can experience a thick attack sound and a natural head resonance. This is a coated head made with a 1-ply, 12mil (300 μm) thick film. I bought this at a musical instrument store this year, but I forgot that I had already purchased the same item at another store, so I'm putting this one up for sale... It's completely unused, but I have taken it out of the bag, so please understand.