3 Ton Jack Stands. This jack standset will provide your auto mechanic or service operator the safety required to get the job done. They are a perfect addition to any shop or road side service vehicle. Sold as a pair. Counter-Weighted Pawl Serves As A Safe, Secure Locking Device To Prevent The Load From Accidentally Disengaging Sturdy, Welded Steel Construction For Superior Safety And Strength 1-Piece, Multi-Position Ductile Ratchet Bar Provides Super Strength And Durability, And Quick Adjustment Mechansim That Securely Locks Into Desired Location Sold And To Be Used Only In Pairs Capacity Per Pair ATD-7443 3-Ton Jack Stand Ratchet Style Capacity (Ton): 3 Minimum Height: 11-1/2″ Maximum Height: 17″ Saddle Size: 3-1/2″ x 1″ Base Size: 6-3/4″ L x 7-3/4″ W Shipping Weight: 16 lbs