Proper design : Comfortable handle designed according to human, it feels smooth and brings comfortable experience,lengthened trigger, convenient press, long time pull no fatigue,humanized hanging design, convenient storage Easy to use : You have to simply place it on the top of the can, making sure that the nozzle is central to the aperture of the applicator. Twist the locking catch to ensure. Now simply pull the trigger and paint.Twist the locking catch to ensure. Wide Application: suitable for many kinds of pressure tanks, most of the spraying film products can use this product, graffiti pulling gate changing color, computer host painting, wheel hub changing color, furniture changing color, car paint repair, model color, keyboard paint. Suitable for large spraying area, long time of construction work, solve the finger for a long time to press the stiffness and fatigue, more time and effort saving