The features: 1. 10" Diameter Wheels 2. Gas Activated, Self-Leveling System with Security Pin 3. Large Base Pad (17" x 18.5") 4. Large Trailer Contact Pad (5" x 30") 5. Lifting Capacity: 40,000 lbs 6. Service Range: 41" - 50.5" 7. Static Capacity: 100,000 lbs 8. Wide Handles with Grips for Easy Positioning