Easy to use - the one-piece floating design is very easy to use. Open the cover, slowly add chlorine or soluble chlorine particles and place them in the pool after adjusting the output. Its advantages are effective water purification and reduction of bacterial growth. The correct size - 120*135*45mm, can put 250 grams of tablets. Ports adjustable - there are 4 adjustable flow adjustment ports at the bottom, so the flow can be adjusted according to actual water conditions. Premium Quality - made from PP materials of high quality, it is very corrosion resistant, ideal for swimming pools, water parks, aquariums, spas, etc. Large capacity - (120 * 135 * 45mm) mass storage is designed for long term use, not frequent use. Package contains: 1 x Pool Pill Dropper, no other!