The Power Calls Fuel Pot Turkey Call is an easy to use friction type call. The Crystal model enables higher frequency cuts and yelps that sometimes triggers a response from hung up gobblers. The Slate model makes the sweetest tree yelps and cluck/purrs for when up close quiet calling is needed.FeaturesEasily replicates yelps, cuts, clucks and purrsSlate or Crystal over glassIncludes matched purple heart strikerIncludes Fuel Cap snap-on protective lidSurface conditioning pad included