The Green Acrylic Striker will work on any surface, dry or wet, on any friction call. But it was designed to work on the Mountain Hollow Game Calls such as the Gobb Stopper, Double Talk Extreme, Premium Wood Double Slate and the Double Talk Legend friction calls. It's always good to have an extra striker in your turkey hunting vest in case you lose one, or so you can just pull it out and talk a little turkey!