Flextone Green Thunder Single Reed Call The Green Thunder Single Reed is sure to turn heads shiny green ones, that is. The power of the single reed will help both beginners and experts grab a high-flying mallard's attention. The molded polycarbonate casing makes this a durable, long-lasting call that can withstand the elements. Take it with you when you're hunting pot holes, marshes, timber and open water on light, windy days. Features: User Friendly Realistic sounds Soft-calling polycarbonate Single reed for added versatility Low-end quacks and aggressive feed chatter