DescriptionThis plastic frame is design for holding the moss ball or breeding shrimp. With hollow-out design and rope, the aquatic plant can grow up freely. You can carry them out of the fish tank whenever you like, convenient and easy used. A great accessory for your fish tank.Features- Color: As shown. - Material: Plastic. - Size: Approx. 5 x 5 x 2.5cm. - Two application:Can use as grass cultivation platform or filling filter for water purification. - Decorating you tank excellently:A good landscaping for your aquarium or fish tank. - A great playground for shrimp: It provide enough room for shrimp to hide and seek. - Enriched with minerals: Provide the minerals necessary for plant growth. - Easy installation and removal:Thread structure, no trouble to install. - Warm Tip: Dear buyer, Due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!