Primos The Great Big Can Call Primos has been trusted by individuals for decades. Products that are made of quality material and designed to withstand the toughest environments. Trust the Brand that others in the field Use and don't settle for less Quality materials used for all primos products 100 percent designed and tested for the toughest situations and environments 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