Description: Material: Aquarium floating plant rings are made of EVA material, lightweight and sturdy to ensure durability and longevity.Function: Fish feeding rings are designed to effectively keep food and floating plants in a fixed position without being carried away by water.5 Sizes: The set includes 5 different sizes 8cm/11cm/14cm/17cm/20cm to meet different needs.Multifunctional Use: These floating plant pots are suitable for creating a beautiful aquatic environment in your fish tank or aquarium.Easy to Install: Aquarium grass blocking rings have a floating design that is easy to install and maintain in your aquarium. Specification: Material: EVA Size Chart: 20cm/7.87inch, 17cm/6.69inch, 14cm/5.51inch, 11cm/4.33inch, 8cm/3.15inch Package Includes: 5Aquarium Floating Plant Rings Note: Please allow slightly errors due to manual measurement and different monitors.