Set comes with 6 red/yellow water pumps designed for kids. Each pump has a see-thru chamber which allows kids to watch as the water fills up and exits the pump. recommended for ages 3 and up. Pump action top uses problem solving skills to make water fill the tube and release out the spout. Each pump measures 8.5 inches. Constructive Playthings is committed to providing safe, compliant products and a healthy, safe working environment worldwide. We require that all products meet all applicable federal regulations, which we review on a continuous basis.