• W38-56-12 BA | W385612BA• Inner dimension: 38, Outer dimension: 56, Width: 12, Weight: 0,1, Material: NBR (Perbunan), Temperature range: -30 to +100 °C, Version: Rubber coating, Pressure resistance: Up to 0.5 bar max., Dust lip/Protective lip: Without, Tension spring: Non-alloy steel