Ken-Tool Shark Fin Dual Wheel Separation Bag for Steel, Aluminum and Chrome Wheels • No Metal on Metal Contact • 5000 Lbs of Static Pressing Force • Works on 15" to 24.5" Dual and Single Wheels and Tires on Trucks and Trailers • Kevlar Inner Inflation Bag is Industrial Grade and Nearly Puncture Proof • Portable, Durable, and Fast — Full Inflation Only Takes Seconds • 3' Inflation Hose Makes Access Easy and Safe • Deflation is Controlled With a Quick Turn of the Slotted Valve Cap • 9.75" x 8" x 3/8" Height Deflated — 5.5" Height When Fully Inflated • 90 PSI Maximum Pushing Pressure — 150 PSI Maximum Rated Pressure