High Quality Material - Made Of High Quality Plastic, The Floating Box Is Non-Toxic And Harmless. It Does Not Harm Human Health And Can Be Used Safely. The Plastic Is Scratch-Resistant, Wear-Resistant And Durable, And It Has A Long Service Life. Adjustable Opening - The Bottom Of The Dispenser Can Be Adjusted, It Has 4 Adjustable Openings. And The Dispensing Flow Can Be Twist Adjusted. You Can Adjust It According To The Dosage You Need. Easy To Use - Unscrew The Top Cover, Fill The Chlorine Tablets, Twist The Bottom To Adjust The Required Amount, Then Place It In The Pool. 1 Inch Chlorine Tablets Can Be Placed Directly And 3 Inch Ones Need To Be Crushed In Advance. Necessary For Health - It Can Keep Pool Water Clean And Healthy. The Floating Chlorine Dispenser Creates A Clean And Hygienic Environment For Family Or Clients, So Everyone Can Be Reassured In The Water. Widely Used - Not Only Suitable For Indoor And Outdoor Swimming Pools, But Also For Water Parks , Spas, Aquariums, Etc. (The Size: 4.96 (Top Diameter) X 5.32 (Height) X 1.97 (Bottom Diameter) Inches).