Final answer:
The cane with four rubber-tipped feet is called a quad cane, providing greater stability for users needing extra support.
Step-by-step explanation:
The cane that features four rubber-tipped feet is known as a quad cane. This type of cane provides increased stability over single-tip canes due to its wider base and the four points of contact with the ground. The quad cane is designed to assist individuals who require more support than a standard cane can offer, making it ideal for those with significant balance or mobility issues.