Features: Made of high quality PVC materials, it has sturdy construction, anti-corrosion and durable to use. Provide a steady stream of chlorine into your pool or spa. Flow regulating design, you can adjust the opening size according actual situation of pool. Has two sizes for your choice, meet your need. Great for holding or dispensing chemical tablets in small pools, spas, hot tubs, waterfalls and fountains. Specification: Condition: Brand New Material: PVC Color: Blue + White Type: S, M (Optional) Size Total Height(Approx.) Bottom Diameter(Approx.) Top Diameter(Approx) Weight(Approx.) S 118 mm / 4.65 inch 47 mm / 1.85 inch 120 mm / 4.72 inch 86g M 165 mm / 6.50 inch 80 mm / 3.15 inch 170 mm / 6.69 inch 230g Package Included: 1 x Floating Chlorine Dispenser Note: Please allow slight deviation for the color and measurement. Thanks for your understa nding. . Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.