Hartz® Hairball Remedy Plus™. Helps prevent hairballs. Natural salmon flavor. For cats + kittens. Net Wt. 2.5 oz. (70 g). Hartz® Hairball Remedy Plus™ not only helps hairballs pass safety through the gastrointestinal tract, it also helps prevent the formation of hairballs through regular use. Hartz® and other trademarks are trademarks of The Hartz Mountain Corporation. Questions Call: 1-800-275-1414 weekdays 9am-5pm EST or please Visit our website: www.hartz.com.