Features: Easy Maintenance: Detachable box, easy to disassemble and clean. Hanging type. A separating hatchery for pregnant fish, protecting new born fish from being attacked, improving the survival rate of newborns fish. Creates a safe and secure breeding box for small fish while monitors your baby fish easily. Space-Saving: Fix tightly to the inside of the for fishtanks with 2 shapable hooks. Floating, double box combination, saving space. Versatile Isolation Box: Unique cover, preventing fish jumping out. Can be used as the spawning box for the viviparous fishes. Especially great for aggressive fish or injured fish. Specifications: Component: Plastic Size: Approx. 9.5x21cm/3.74x8.27inch Quantity: 1 Pc Package Includes: 1 pc Aquarium Breeding Box note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.