• All pieces interlock
• Includes Models: 12501, 12502, and 12503
• Can be used individually or stacked together for various lift heights
• They will not slide or shift during lifting

Tonnage: 55
Sizes: 3″ / 6″ / 9″ | 76mm /  152mm /  229mm
Diameter: 12″ | 305mm
Weight: 141 lbs. | 64 kg