Vet & Farm Essentials Bolus Gun, Curved, For Cow Clearance Sale! Bolus Gun / Balling Gun, Curved, For Cow 19" long Bolus Gun with Stainless Steel head of 1 1/2" diameter, 3 3/8" deep Easy dispensing utilizing the efficiency and economy of the Green V Grip Metal Handle Lightweight, one hand use for easy administration of medication, capsules Handle returns to open position once bolus is dispensed