The basics Deliver a fine mist of liquid formulas with this 6 oz. PET bottle. The pro tip Once assembled, these bottles are locked and unable to be refilled. The uses This unique spray mechanism eliminates the need for propellant gasses and delivers a similar effect to traditional aerosol packaging, without the harmful environmental impact. The bottom line These sleek PET bottles come with a spray top that delivers a fine mist of liquid formulations.