Innovative, original, single inner tube, non return design ensures clean, full strength chemical for each cow's teats. Deep inner liner prevents contaminated dip from returning to reservoir bottle, helping to control the spread of mastitis. Specially designed, tall angled style with wide splash-proof lip and overflow chamber help reduce spillage and overflow. Easy and convenient to reach all four quarters for maximum teat coverage. Soft squeezable bottles have a wide mouth for easy filling. Made of tough, durable, chemical-resistant materials. Feature convenient molded-in belt clip. 30 ml cup capacity; bottles hold 300 ml.