The Forney 75336 lever-type blow gun with 2 foot extension and rubber tip is zinc alloy with blue zinc coating. Extension is aluminum with oxidized finish. For use on regulated compressed air lines. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. Were committed to your success regardless of location size or needs. Lever-type blow gun with 2 foot (50.8mm) extension and rubber tip. Recommended working pressure of 90 PSI. Max working pressure 150 PSI. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.