Many experienced turkey hunters have adopted ways to keep their box calls silent as they move through the woods. They Lock Jaw� is the most effective device we have found to keep you box calls silent. It also quickly detaches when you need to use your call. It�s simple reliable products like the Lock Jaw� that make the difference between almost making it happen or having success on your hunt. - Box Call silencer - Kills unwanted sound - Quickly detaches from any box call - 3 pack