uxcell Uxcell 4 Pcs Hard Plastic One-way Valve Replacement Dark Blue Product Name : One-way Valve;Flow Medium : Air, Liquid Length : 36 mm/ 1.4";Connector Diameter : 5.5mm/ 0.22" External Diameter : 19mm/ 0.7";Main Material : Hard Plastic Color : Dark Blue;Net Weight : 8g Package : 4 x Quick Exhaust Valve