DURABLE ALUMINUM CONSTRUCTION: Made of Aluminum, Long-Lasting and Resistant to Corrosion. SAFETY AND NO LEAKAGE CONNECTION: Six balls design for holds the air tools well and ensure NO LEAKING connection.All Male Thread with Sealent for No Leaking and Come with Teflon Tape. WIDELY USE:Lightweight and easy to handle and use. Quick connect feature saves time and effort, one-handed operation, easy to connect/disconnect. EASY CONNECT SYSTEM: Sleeve Guard Helps Reduce the Risk of Accidental Disconnects and Protects the Coupler Sleeve. TWO YEAR limited warranty.