Today, I am offering a used, chrome plated balling bolus gun that is great for treating your livestock without getting bit. This medication dispenser measures 19″ inches from end to end with the plunger pulled out and about 16.75″ inches with the plunger pushed in. The diameter of the bolus cup is 1″ inch diameter inside and about 1.25″ inch diameter on the outer edge and the length is about 3″ inches long. The spring clips inside are in good working order and this piece of equipment is ready for use. The wood tray it is displayed on is not for sale. Thanks for looking. If you have any questions, feel free to ask and I will do my best to answer you. I ship with USPS Mail tracking included and I ship as soon as cleared Paypal payment is received.