The 2 oz. Cobalt Blue Glass Boston Round Bottle with Silver Treatment Pump is a versatile bottle that is perfect for holding virtually any product. It offers a sleek, stylish look with a brilliant blue hue. Includes Silver Treatment Pump with 4" Dip Tube. Dispensing Amount: .1 ml per stroke. Dip Tube will need to be cut to fit. When cutting the dip tube, make sure to cut at a 45 degree angle.