The River Otter Turkey Box Call from M.A.D. is a 100% waterproof call that features a special coating so it will never need chalk. The box is crafted from American Ash and the lid is exotic Purpleheart. The River Otter can be used right or left handed and is perfect for producing high-pitched cutts and yelps. With this call you will be bringing in gobblers, rain or shine.