High quality material: The pontoon is made of high quality plastic, which is non-toxic and harmless. It will not harm human health and can be used safely. EASY FLOAT: The pool chlorine diffuser can easily float on the surface of the pool to evenly distribute chlorine without worrying about the chlorine level in the pool. The pool chlorine float comes with a cover lockable that holds the chemical tablet securely inside. Easy to use: just open the lid and slowly add chlorine tablets, adjust the water outlet and put it in the pool. 1 inch chlorine tablets can be placed directly and chlorine tablets 3 inches must be crushed in advance. Adjustable Flow Ports: Ports are designed on the side of the dispenser to control the amount of chemical coming out of the dispenser. You can adjust it according to the dosage you need. Wide Range of Uses: l Can keep pool water clean and healthy. Floating chlorine dispensers create a clean and hygienic environment for the home or customer, giving everyone peace of mind in the water. Agrees in-ground pools, jacuzzis, spas, above-ground pools, ponds, etc.