Lynch Mob Calls Fool Proof Turkey Box Call. While one side acts as an automatic stop making this call virtually fool proof the other side produces the sounds of hen during the spring. Lynch Fool Proof Box Call. Specifications for Lynch Mob Calls Fool Proof Turkey Box Call: Manufacturer: Lynch Mob Calls Additional Features: No Call Imitates The Hen Species: Turkey Length: 13 mm Weight: 0.4 oz Width: 5.2 in Height: 2.8 in Package Contents: Lynch Mob Calls Fool Proof Turkey Box Call