1.Package contents: You will receive an automatic dosing device specially designed for swimming pools. With a diameter of 17.8 cm and a builtin thermometer (° C/°F), it can make your life easier and you a comfortable experience! 2. Materials The large floating distributor is made of high strength corrosion resistant plastic, making it highly resistant to ultraviolet radiation. This ensures the longevity and reliability of the device. In addition, it has a highquality screw cap for filling. 3. The floating dispenser can fill 20 to 200 grams of chlorine and bromine particles and holds 3 pounds. It is enough to keep the swimming pool clean for a long time. Enjoy pure and clear water and enjoy the pleasure of bathing in a swimming pool or massage tub. 4.UNIQUE DESIGN With the sturdy dispenser with builtin thermometer, you can control the water temperature in the swimming pool at any time. Therefore, you can use the swimming pool at your preferred water temperature at any time. Fully control the temperature of the swimming pool (10°C to 50°C) and the flow of chlorine through an adjustable control loop. It is the perfect dispenser for your swimming pool, swimming pool or play pool.