1. Floating on the water - open the cover, add chlorine gas or slowly dissolve the chlorine particles, then put it into the pool after adjusting the water outlet. Chlorine dispensers float on the surface of the pool to clean the water. 2. ADJUSTABLE RING - Adjustable ring chlorine diffuser for complete chlorine gas control and leak proof screw cap. Never worry about chlorine levels in your pool or spa again. 3. Sturdy and durable - The floating doser is made of high quality ABS material, which is strong and durable. You can use it in the swimming pool in the summer, it works well and is easy to use. 4. Applicable scenarios - the chlorine gas dispenser can be applied to many scenarios, swimming pool, spa, water park, aquarium, spa ready... 5. Product Dimensions -- 4.5cm bottom. High 12.5 cm, height 13.2 cm. The floating dispenser fits 1.5 inch chlorine tablets. Note: Please confirm whether the size of the chlorine tablet is suitable for this product before purchasing.Products from LUOLV's store