Features: Made of high quality PVC materials, it has sturdy construction, anti- and to use. Provide a steady stream of into your pool or spa. 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.) Cylinder Height(Approx.) Opening Hole Diameter(Approx.) Bottom Diameter(Approx.) Top Diameter(Approx) Weight(Approx.) S 135 mm / 5.31 inch 65 mm / 2.56 inch 55 mm / 2.17 inch 50 mm / 1.97 inch 120 mm / 4.72 inch 86g M 180 mm / 7.09 inch 88 mm / 3.46 inch 95 mm / 3.74 inch 80 mm / 3.15 inch 175 mm / 6.9 inch 230g Package Included: 1 x Floating Dispenser Note: Please allow slight deviation for the color and measurement. Thanks for your understanding.