uxcell Tee Shape 3 Way Plastic Aquarium Air Line Valves 20 Pcs White Product Name : Aquarium Tubing Connector;Tube Connector Dia (Approx.) : 2mm x 4mm/ 0.08"x 0.16"(Inner Dia*Outer Dia) Overall Size (Approx.) : 30 x 18 x 5mm / 1.2" x 0.7" x 0.2''(L*H*W);Material : Plastic Color : White Weight : 10g Package Content : 20 x Aquarium Tubing