uxcell Aquarium Detachable 6mm Dia 10 Way Air Control Valve Tubing Connectors Product Name : Aquarium Air Control Valve;Hose External Diameter : 6mm/ 0.23" Inner Diameter : 3mm/ 0.12";Overall Size(Approx) : 210 x 24 x 33mm/ 8.3" x 0.94" x 0.12" (L*W*T) Material : Plastic;Color : Black Weight : 31g Package : 1x Aquarium Air Control Valves