The fish tank divider is made of food-grade plastic material, which is non-toxic, tasteless, and environmentally friendly and will not affect water quality. Using a grid divider can effectively separate fish and prevent them from biting each other. Improve the survival rate of baby fish and separate diseased fish from aggressive fish. Size: 11.8 x 5.9 x 0.3 inches (approximately 30.0 x 15.0 x 0.8 cm); use these dividers to easily divide the fish tank into multiple compartments for breeding or separation. The plastic grille can be cut and combined freely, and the suction cup clamp can be fixed anywhere in the aquarium. Color: black Material: plastic Package Contents: 4 x black grid dividers 8 x suction cup clips Only the above package content; other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allows an error of +/- 1-3 cm.