Professional Foam Gun TVARDY. Fitted with 2 removable extension pipes for reaching into awkward gaps and holes. Product Features Gun costruction is made of a die cast aluminum Nickel plated body Aluminium alloy, nickel plated adapter Handle design conforms to the curve of humand hand Handle TPR coated with PP Foam flow adjustment knob permits one-hand operation Knob covered with soft rubber, which improves the efficiency of regulation and increase the convenience of use