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 rate can be adjusted by twisting. 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 should be crushed ahead of time. NECESSARY FOR HEALTH - It can keep pool water clean and healthy. Floating chlorine dispenser creates a clean and hygienic environment for family or customers, so everyone can be reassured in the water. WIDELY USED - Not only suitable for indoor and outdoor swimming pools, but also for water parks , to SPASs, aquariums, etc. Height 132mm, diameter 125mm, bottom diameter 45mm, weight 90g. Note: this does not include other things, the color is based on the first picture, and other pictures only show the effect En Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!