Item Name: Bolus or Balling Gun with Soft black 18 mm Rubber Cup Livestock Material: Stainless Steel Size: Cup Size 18 mm Diameter x 65 mm Depth and 13" Long Finish: Polish Hardness: ***** Cat # ZA-03-121-20 Packing: Poly Bag Descriptions 13" Long Bolus Gun for live stock Spring-loaded one-handed action Lightweight for easy administration of medication, capsules. Handle returns to open position once bolus is dispensed Rubber tip accepts many sizes of boluses. Cup stretches to fit up to 22mm Quality: High-Quality Guarantee: Money Back Guarantee