Features: brand new and high quality Easy Maintenance: Detachable design, easy to disassemble and clean. No tools needed. for Ideal Breeder Tank: A must-have separating hatchery for pregnant betta or guppies, protecting new born fry from being eaten or attacked, improving the survival rate of newborn fish. Size: S measures12.6x7x7 for cm/5"Lx2.8"Wx2.8"H, L measures 22x9.5x10 for cm/8.7"Lx3.7"Wx3.9"H. Creates a safe and secure breeding nursery for small fry while monitors your baby fish easily. Space-Saving: Fix tightly to the inside of the for tank with 2 suction cups. Side vents allow for optimum water flow, requires no additional heaters or air pumps. Versatile Isolation Box: Bottom separator with small slots can prevent the new born fry or shrimp to escape. Removable divider of customized size and number of chambers for different needs. Especially for aggressive fish or injured fish. Specifications: Material: Plastic Color: Transparent Size: S-Approx.12.6x7x7cm/4.96x2.76x2.76in L-Approx.22x9.5x10cm/8.66x3.74x3.94in Weight: S-Approx.100g L-Approx.160g Package Includes: 1 Piece Fish Breeding for Tank with Suction Cups (S/L) note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!