Final answer:
A quad cane has four feet at its base, providing significant stability and better balance for users who need extra support while walking.
Step-by-step explanation:
A quad cane is a mobility aid with four feet at its base. It is designed to provide greater stability compared to a standard single-tip cane. The four tips at the base of the quad cane allow it to stand freely and offer better balance for users, making it a helpful tool for those who require additional support when walking.