Extra heavy-duty
Ductile steel center post and pawl for added strength
Saddle column provides ratchet action height adjustment
Positive Lock Handle cannot be disengaged until load is off the saddle cloumn
Lock Handle can be use for carrying handle
Four legged steel base for added strength

Specifications:
Weight capacity: 6,600 lbs.
Max height: 17-5/8" (448 mm)
Min height: 11-13/16" (301 mm)
Height intervals: 13/16" (22 mm)
Base size: 8-3/8" x 7-9/16"
Saddle size: 1-3/16" x 4-5/16"
Net weight: 27 lbs. (27 kg)