This Heavy-Duty 4X4 Tire Deflator Is An All-In-System That Removes The Valve Core For Fastest Deflation Allowing You To Stay In Control To Accurately Attain Your Desired Psi. 
Engineered To Be Tough. Built Using Rust And Corrosion Resistant Brass, A Braided Air Hose, Tough Rubber Protective Covering And A Bourdon Tube Style Pressure Gauge.
Instantly Check The Tire Pressure During Deflation By Simply Sliding The Collar In.

Instantly Read The Psi Then Slide The Collar Back Out To Keep Deflating. 
Details:

• Oversized Digital Gauge
• Heavy Duty Rubber Protective Cover
• Illuminated Display
• Anti Rust Brass and Stainless Steel Components
• Reinforced Nylon Wrapped Air line
• 3 Inch Circle Dial
• 17 Inch Hose
• Removes The Valve Core For Fastest Deflation
• Instantly Read The PSI

Included Accessories:

• Canvas Storage Pouch
• 4 Chrome Valve Caps
• 4 Black Valve Caps
• 4 Valve Cores
• A 4-In-1 Valve Tool