FEATHERSApplication - used to reduce dynamic noise of the pneumatic components or device exhaust.Product Name: Pneumatic MufflerColor: Black WhiteThread Outer Diameter: 1/8 GThread Length: 7mm / 0.28"Total Size Per Piece: 37.8 x 15mm / 1.49" x 0.59" (H*D)Operating Pressure: 1-10.2kgf/cm^2(0-1.0mpa)Negative Pressure: -750mmhg(10 Torr)Package Content: 5pcs x Plastic Pneumatic Muffler