Key Features Orange Weighted base to stop them falling over Adds interesting decoration to your tank. Fits all BiOrb tanks Easy to place. Suitable for all aquariums Oase biOrb Colour balls are a delightful and colourful addition to your biOrb tank. The decorations can sit safely in the bottom of the tank thanks to their weighted ball base design. The balls can sit snuggly amounts the ceramic media or decorative stones. The weighted base keeps the decoration grounded and stops it from rolling around or floating to the surface. The balls add colour and interest to the aquarium, making it a more varied environment for your fish to swim around. Combine these with other plants in the biOrb range and your tank will be bold and interesting. Specifications Orange Dimensions: Width: 9cm* *Measurements are approximate.