This double action pump spray trigger means, yeah you got it the action works both ways. Which means in short you can double the amount of chemical you can spray on your bike in half the time. It is also high quality so gives a great smooth action and will also last donkeys years. It also comes with a strong 1 litre bottle so great for taking with you to events.
It can be used upside down and has an adjustable nozzle tip which can create a fine mist to a full spray.