THE GREAT BIG CAN has been tuned to be louder and longer for long-range calling. It s perfect for windy days and hunting wide-open fields. You can t beat the quivering Estrus Bleat that has made THE CAN family of calls so accurate and effective. We guarantee it! Larger size for louder and long-range Estrus Bleats Perfect for pre-rut, rut and post-rut hunting Perfect for windy days and hunting wide-open fields