The Flow mop is a flat mop micro fiber mop system that has a 29 oz tank that can be filled with you favorite chemical for cleaning floors or laying down super smooth floor finish that dries fast and hard. I personally designed the handle myself to be as ergonomically friendly to the user. No wearing out your thumb. Just squeeze you hand on the handle and the fluid will dispense on the floor to be used. You control the flow. Speeds up cleaning times and if you learn to dance with it versus pushing a mop you will feel hardly any fatigue. It is always ready to go when you are as the tank can be left with fluid in it. Even floor finish. 18″ head comes with the complete flow mop and one pad.