Jardin Fish Tank Aquarium Biochemical Sponge Pump Filter Black Material: plastic and sponge Use for: aquarium; tube size: 23 x 12 cm/9 1" x 4 7" (l x w) Sponge Size: 12 x 6 cm/4. 7" x 2. 4" ( L x D. ); Color: Black; Weight: 65g Connector Hole Diameter: 1. 8cm/0. 7" Package content: 1 x aquarium sponge filter