Quad base and offset handle to increase stability.

Large Quad Cane:
Base: 12" x 6.75"
Height Adjustable: 29.5" - 37.5"
Weight capacity: 300 lbs
 
Small Quad Cane:
Base: 8.75" x 5.75"
Height Adjustable: 28.25" - 37.25"
Weight capacity: 300 lbs