Features: 1.High-quality, unique design: Provide enhanced flow control-there are 4 adjustment ports with decorative patterns at the bottom, a lockable cap and an adjustable ring for complete control. Adjustable flow ports with different gears to control the release of chemicals. 2.Adjustable flow port： The flow is adjustable as is the amount of chlorine you put in. Can adjust the flow rate of the drug flow according to the actual situation of the pool, save your on yours chlorine bill and has reduced over and under chlorination, very practical. The twist ring allows you to easily adjust the flow rate with just a flick of your wrist. 3.Applicable scenarios: Hot tub chlorine dispenser is ideal for keeping your pool, paddling pool, water parks, aquariums, spas, above-ground swimming pools, salt water pools, fiberglass pools, hot tubs lazy spa clearance etc. ready to use. The dispenser can be used in various seasons. 4.High-quality materials-the floating chlorinator made of high-quality ABS plastic is durable. 5.Simple-open top cover and retractable tail design. Specifications: Material: High quality ABS plastic Color: Blue and White 5 inch Weight:280g Warm Tips: 1.Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package includes: 4 × Floating Chlorine Dispenser