uxcell Aquarium Tank Clear Plastic 2 Way Air Valve Line Connectors 30 Pcs Product Name : Aquarium Tubing Connector;Tube Connector Dia (Approx.) : 5mm / 0.2" Overall Size (Approx.) : 20 x 20 x 6mm /0.79" x 0.79" x 0.24" (L*W*H);Material : Plastic Color : Clear Weight : 20g Package Content : 30 x Aquarium Tubing