The ceramic aquarium plant rings can solve the problem of floating water plants in your tank; you can recommend this method to your friends when they have similar problems; and The ceramic aquarium plant rings will make the water plants neat and orderly and decorate the tank more beautifulSpecifications:Type: Anti-Floating Ceramic Aquarium Plant RingMaterial: ceramicColor: whiteFixed ring:diameter 4.4cm/1.73inchinner diameter 3.2cm/1.26inchheight 2.5cm/0.98inchsmall cup:top diameter 4.3cm/1.71inchbottom diameter 3.2cm/1.26inchheight 4.3cm/1.7inchplanted cotton:top diameter 3.8cm/1.5inheight 3cm/1.18inPacking List:anti-floating ceramic aquarium ring * 8aquarium planter * 8planted cotton * 8Notes:Note that the shape and color of the aquatic plant fixing ring may vary slightlyDue to manual measurement please allow a small error in sizeDue to the difference in monitors there may be slight differences in colorHope you can understand