Usage Tips:Material: The floating chlorine dispenser is made of plastic, lightweight and portable, weighs only 80g. It can easily float on the water without sinking Adjustable flow: The size of the dispenser is 10 ,9*12.3*5.2cm, suitable for 1.5 inch chlorine tablets, there are 5 adjustable flow levels on the bottom of the product, you can adjust it at will according to the size of the the pool, at both ends are dosed to ensure even release Note: 20g for 3m, 50g for 10m Dispenser with thermometer: A kerosene thermometer is included in the device It can easily detect the temperature of the pool when disinfection, the measurement range: - 30-120 . The thermometer is kerosene instead of alcohol, even if the product breaks accidentally, easy to clean no need to worry. Simple operation: Open the safety lock on the top of our dispenser chlorine for swimming pool, place the chlorine tablets, adjust the flow and ready to use, the safety lock design can prevent children from opening it by mistake. Wide application: Suitable for children swimming pools, spas, simple and easy to operate, one of the essential pool cleaning tools. Note: It is best not to stay in the water during disinfection and keep away from children.< /p >