Clay feet are available in various shapes and forms: angular or rounded, small or large in various clay colors or powdercoated to match your container. They are not only a design element, but help to avoid soil wetness by allowing the excess water to drain easily. This protects the root ball of your plants from possible decay as well as the clay pots from frost damage in winter. Ground frost does not reach the container directly and pests cannot access the planter through the bottom hole.
Especially if your plants are to winter outside, the elegant clay feet prove as valuable accessories.