The aquarium divider is made of plastic material, which is tasteless and environmentally friendly and will not affect the quality of the. Using a grid divider can effectively separate fish and prevent them from biting each other. Improve the survival rate of baby fish and separate sick fish from aggressive fish. Dimensions: 11.8 x 5.9 inches (approx. 30.0 x 15.0 cm); By using dividers, you can easily divide the aquarium into several compartments for breeding or separation. Plastic grid type can be cut and combined freely, and the suction cup clip can be fixed anywhere in the aquarium. The set includes 8 black grid dividers and 10 suction cup clips, easy to fix and move. Color: Black Material: Plastic Package Contents: 8 * Isolation Board 10 * Suction Cup Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.