uxcell 5 Pcs 5mm Thread One Touch Tube Speed Control Valve Connector Material: Plastic, Metal; Color: Black, Blue; Weight: 45g Thread Diameter: 5mm/0.2'' Inner Diameter (Blue End): 6mm/0.24'' Total Size (Each ): 27 x 27 x 12mm/1.1'' x 1.1'' x 0.5'' (L*W*T) Package Content: 5 x Speed Control Fitting