Key Features Medium Size Realistic look Easy to fit Made from aquarium safe materials Fits over centre bubble tube biOrb Grass Ring Decorations The biOrb Grass Ring ornaments are a welcome addition to your aquarium. Made from safe materials, the grass ring simulates a realistic looking plant and adds a personalised touch. Designed to fit easily over the centre bubble tube of a biOrb 30 the grass rings can be removed with ease for aquarium cleaning and eliminates the need to re- adjust the decorations within the tank. Specifications Medium Ring fits the biOrb 30L 20cm High, 10cm Width (at base)