Head Code:Â Hexagon Technics:Â Casting Model Number:Â 1/4″ Type:Â Plug Shape:Â Equal Hose Inner Diameter:Â 32mm Material:Natural RubberFit Pipe Inner Diameter:45-63mm/64-95mm/96-119mm/145-189mm/190-219mm/240-260mmMax Pressure:0.025mpa,0.25 Bar,3.6 PSIWall Thickness:4mmInflating method:Normal